Divide N$2800 among four boys and two girls so that each girl receives N$200 more than each boy. ​

Answers

Answer 1

The amount that each girl receives if they receive $200 more than each boy is: $1133.33

How to solve proportion word problems?

We are told that $2800 is shared among four boys and two girls.

Thus:

Fraction of boys = 4/6 = 2/3

Fraction of girls = 2/6 = 1/3

Amount received by each boy if shared equally = (4/6) * 2800 = $1866.67

Amount received by each girl if shared equally = (2/6) * 2800 = $933.33

Now, each girl gets $200 more than each boy. Thus:

Amount each girl gets = $933.33 + $200 = $1133.33

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Related Questions

HELP I JUST DONT GET THIS !!!!
Subtract.
(9w² + 3w) - (6w² + w)

Answers

The answer would be (3w^2 + w)

skinner produce buys fresh boston lettuce daily. daily demand is normally distributed with a mean of 100 units and standard deviation of 15 units. at the beginning of the day skinner orders 140 units of lettuce. what is the probability that skinner will have at least 20 units left over by the end of the day?

Answers

For a normally distribution of daily demand of fresh boston lettuce produce by skinner. the probability that skinner will have at least 20 units left over by the end of the day is equals the one.

Skinner produce buys fresh boston lettuce daily. There is daily demand is normally distributed,

Mean = 100 units

Standard deviations = 15 units

At beginning of the day skinner orders 140 units of lettuce. We have to determine the probability that skinner will have at least 20 units left over by the end of the day, P( X ≥ 20). Using the Z-Score for normal distribution is written as

[tex]z = \frac{ X - \mu}{\sigma} [/tex]

where, z --> z-score

X --> excepted value

--> standard deviations

--> population mean

Subsritute the known values in above formula, [tex]z = \frac{ 20 - 100}{15} [/tex]

= - 5.33

Now, probability value, P ( X < 20)

[tex]= P( \frac{X - \mu}{\sigma} < \frac{ 20 - 100}{15} )[/tex] = P( z < - 5.33 )

= 0.000

So, P( X < 20) = P( z< -5.33) = 0 . Also, required probability is P( X≥ 20) = 1 - 0

= 1

Hence, required value is one.

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which of the following numbers could be added to 1/12 to make us some greater than 1/2



5/12

9/24

1/3

4/9

Answers

The numbers that could be added to 1/12 to make the sum greater than 1/2 are 9/24 and 4/9.

To make the sum greater than 1/2, we need to find the number that, when added to 1/12, gives a result greater than 1/2.

1/2 is the same as 6/12, so we need to find the number that, when added to 1/12, gives a result greater than 6/12.

1/12 + 5/12 = 6/12, which is not greater than 1/2.

1/12 + 9/24 = 1/12 + 3/8 = 11/24, which is greater than 1/2.

1/12 + 1/3 = 1/12 + 4/12 = 5/12, which is not greater than 1/2.

1/12 + 4/9 = 3/36 + 16/36 = 19/36, which is greater than 1/2.

Therefore, the numbers that could be added to 1/12 to make the sum greater than 1/2 are 9/24 and 4/9.

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Suppose that a Normal model described student scores in a history class. Parker has a standardized score (z-score) of +2.5. This means that Parker
A. is 2.5 points above average for the class.
B. none of these
C. is 2.5 standard deviations above average for the class.
D. has a score that is 2.5 times the average for the class.
E. has a standard deviation of 2.5.

Answers

Parker's standardized score (z-score) of +2.5 means that he is 2.5 standard deviations above the average score for the class. C

Normal distribution, the mean (average) is represented by the letter μ and the standard deviation by σ.

The z-score is a measure of how many standard deviations a data point is away from the mean.

A positive z-score indicates that the data point is above the mean, while a negative z-score indicates that it is below the mean.
Parker's z-score of +2.5 tells us that his score is 2.5 standard deviations above the class average.

We don't know the exact values of μ and σ, but we can use the properties of the Normal distribution to make some general statements about Parker's score.
99% of the data in a Normal distribution falls within 3 standard deviations of the mean.

Since Parker's z-score is 2.5, we can estimate that his score is higher than about 99% of the scores in the class.

Parker is performing very well in the history class compared to his peers.
z-score is a standardized measure, which means that it can be used to compare scores from different distributions.

If we wanted to compare Parker's score to the scores of students in another class, we could convert both sets of scores to z-scores and compare them directly.
Parker's z-score of +2.5 means that he is performing exceptionally well in the history class, with a score that is 2.5 standard deviations above the class average.

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The number of milligrams of Vitamin C from 100 different gummy vitamins sold in the world was collected.

Which graphical representation would be most appropriate for the data, and why?

Box plot, because the median can easily be determined from the large set of data
Stem-and-leaf plot, because you can see the shape of the data
Histogram, because it shows each individual data point
Bar chart, because the data is categorical

Answers

The graphical representation that will be most appreciated for the data would be box plot, because the median can easily be determined from the large set of data. That is option A.

What is a box plot?

The box plot is a type of graphical representation of data that gIves more than one detail about the data set such as;

minimum,first quartile,median,third quartile, andmaximum.

Box plots allow you to compare multiple data sets better than others dues to the above listed features that it has.

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Calculate the size of angle 0.
Give your answer to the nearest degree.

Answers

In the given triangle, using the law of Cosines, the value of angle θ is 103°

Law of Cosines: Calculating the value of an angle

From the question, we are to calculate the value of angle θ in the diagram.

From the given diagram,

We have a triangle ABC with given side lengths

From the given information,

a = 42 cm

b = 78 cm

c = 57 cm

From the law of Cosines, we have that

cos B = (a² + c² - b²)/2ac

Thus,

cos θ = (a² + c² - b²)/2ac

Substitute the parameters

cos θ = (42² + 57² - 78²)/2(42)(57)

cos θ = (1764 + 3249 - 6084) / (4788)

cos θ = -1071/4788

θ = cos⁻¹(-1071/4788)

θ = 102.9255

θ ≈ 103°

Hence, the value of θ is 103°

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the cunninghams are moving across the country. mr. cunningham leaves 4 hours before mrs. cunningham. if he averages 46mph and she averages 62mph , how long will it take mrs. cunningham to overtake mr. cunningham?

Answers

Answer: Let's call the time it takes for Mrs. Cunningham to overtake Mr. Cunningham "t".

In that time, Mr. Cunningham will have traveled for 4 more hours than Mrs. Cunningham, so he will have traveled 4 + t hours.

We can set up an equation to represent the distance each person traveled:

distance = rate x time

For Mr. Cunningham:

distance = 46 mph x (4 + t) hours

For Mrs. Cunningham:

distance = 62 mph x t hours

Since they end up at the same place, their distances must be equal:

46 mph x (4 + t) = 62 mph x t

Simplifying this equation:

184 + 46t = 62t

16t = 184

t = 11.5

Therefore, it will take Mrs. Cunningham 11.5 hours to overtake Mr. Cunningham.

Step-by-step explanation:

FIND ZC OF THIS CIRCLE

Answers

The value of ZC is 16 units for the given circle and its identities.

What is a tangent of a Circle?

A straight line that touches the circle at a single point—the point of tangency—is the tangent of a circle. The digression is opposite to the span of the circle at the place of juncture, and it broadens outward from the circle in the two bearings.

In the circle two external secant segments are LE and ZE, according to the external secant theorem;

⇒ LE × DE =  ZE × CE               (Here, ZE = ZC + 2)

⇒ 9 × 4      =  (ZC + 2) × 2

⇒ ZC + 2 = 18

⇒ ZC = 18 - 2

⇒ ZC = 16

Therefore, the value of ZC is 16 units.

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Greg started to run on a treadmill after setting it’s timer for 98 minutes the display says that he has finished 57% of his run how many minutes have gone by

Answers

A total of 55.86 minutes have gone by since Greg started his run on the treadmill.

How many minutes have gone by

If Greg has completed 57% of his run, it means he has 43% of his run remaining.

To find out how many minutes have gone by, we can use proportions.

Let's say x is the total number of minutes Greg needs to complete his run:

x = 57% * 98 minutes

Evaluate

x =  minutes

Therefore, approximately 55.86 minutes have gone by since Greg started his run on the treadmill.

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Laurie bought 9 feet 5 inches of blue wire. She also bought 6 feet 4 inches of green wire. How much wire
did she buy altogether?

Answers

Answer:

15 feet and 9 inches

Step-by-step explanation:

9 feet and 5 inches + 6 feet and 4 inches = 15 feet and 9 inches

(I NEED THIS ASAP PLEASE PLEASE!)

6. Reflect triangle ABC over the line x = -2. Call this new triangle A'B'C'. Then reflect triangle A'B'C' over the line x = 0. Call the resulting triangle A"B"C".
Describe a single transformation that takes ABC to A"B"C".

Answers

A Reflect triangle over the line x = -1 will take ABC to A"B"C".

What is triangle reflection theorem?

The outcome is the same as rotating the initial triangle 180 degrees around the origin, just as the theorem predicts, when we reflect the triangle over the y-axis and then cross the x and y axes while reflecting the outcome across the x axis.

The single transformation that takes ABC to A"B"C" is a reflection over the line x = -1.

The new triangle A'B'C' is formed by reflecting ABC across the line x = -2, where each point in A', B', and C' is the reflection of the corresponding point in ABC. As a result, A', B', and C''s x-coordinates are all 4 units to the left of A', B', and C''s x-coordinates.

The final triangle A"B"C is formed by reflecting A'B'C' over the line x = 0, where each point in A", B", and C" is a reflection of the corresponding point in A'B'C' over the line x = 0. Accordingly, the x-coordinates of A, B, and C" are all located two units to the right of the x-coordinates of A', B', and C'.

If we combine these two reflections into a single transformation, we can think of it as reflecting ABC over a line that is 2 units to the right of x = -2, which means it has an equation of x = -2 + 2 = -1. This line is the perpendicular bisector of the segment connecting the points (-2, 0) and (0, 0), which is the line that connects the two reflection lines x = -2 and x = 0.

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Lucy made tables of values to approximate the solution to a system of

equations. First she found that the x-value of the solution was between 1 and

2. And then she found that it was between 1. 5 and 2. Next, she made this

table,

1. 5

16

1. 7

18 T

1. 9

y=-3x + 6

1. 5

12

09

0.

6

03

y = 4% - 5

1

14

18

22

2. 6

Answers

If Lucy made "tables-of-values" to approximate the solution to "system-of-equations", then the "ordered-pair" which is the best approximation of  exact solution is (b) (1.6 , 1.3).

An "Ordered-Pair" is defined as a pair of values which are arranged in a specific order, generally denoted as (x, y), where x represents the first value and y represents the second value.

We are finding an ordered pair that satisfies the following conditions:

(i) The x-value falls within the given range of x-values between 1 and 2.

(ii) The y-value for the equation y = -3x + 6 is closest to the given y-value for the equation y = 4x - 5.

In Option (a) : (1.7, 0.9);

The "x-value" of 1.7 falls within the given range of x-values between 1 and 2.

For the equation "y = -3x + 6", the corresponding "y-value" at x = 1.7 is 0.9, which is not as close to the given y-value for the equation y = 4x - 5, which is 1.4.

So, (1.7, 0.9) is not the best approximation.

In Option (b) : (1.6, 1.3);

The "x-value" of 1.6 falls within the given range of x-values between 1 and 2.

For the equation "y = -3x + 6", the corresponding y-value at "x = 1.6" is 1.2, which is closest to the given y-value for the equation y = 4x - 5, which is 1.4.

So, the ordered pair (1.6, 1.3) is best-approximation.

In Option(c) : (1.5, 1.8);

The "x-value" of 1.5 falls within the given range of x-values between 1 and 2.

For the equation "y = -3x + 6", the corresponding "y-value" at x = 1.5 is 1.5, which is away from the y-value for equation "y = 4x - 5", which is 1.4.

So, (1.5, 1.8) is not the best approximation.

In Option (d) : (1.9, 1.5);

The "x-value" of 1.9 falls within the given range of x-values between 1 and 2.

For the equation "y = -3x + 6", the corresponding y-value at x = 1.9 is "0.3", which is not as close to the given y-value for the equation "y = 4x - 5", which is 1.4.

So, (1.9, 1.5) is not the best approximation.

Therefore, the correct option is (b).

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The given question is incomplete, the complete question is

Lucy made tables of values to approximate the solution to a system of equations. First she found that the x-value of the solution was between 1 and 2. And then she found that it was between 1. 5 and 2. Next, she made this table,

 x           y = -3x + 6          y = 4x - 5

1.5               1.5                         1

1.6               1.2                        1.4

1.7               0.9                       1.8

1.8               0.6                       2.2

1.9               0.3                       2.6

2.0                0                          3

Which ordered pair is the best approximation of the exact solution?

(a) (1.7 , 0.9)

(b) (1.6 , 1.3)

(c) (1.5 , 1.8)

(d) (1.9 , 1.5)

sweets are sold loose, or pre-packed in 120g bags
the 120g bags are £1.49 each.
the loose sweets are £0.89 for 100g.
by calculating the price per gram, determine which is better value
show your working.

Answers

The loose sweets are better value, as they cost only £0.0089 per gram, compared to £0.01242 per gram for the pre-packed sweets.

To solve this problem

We need to calculate their price per gram.

Price per gram of pre-packed sweets:

120 g of pre-packed sweets cost £1.49

1 g of pre-packed sweets costs £1.49 / 120 = £0.01242 (rounded to 5 decimal places)

Price per gram of loose sweets:

100 g of loose sweets cost £0.89

1 g of loose sweets costs £0.89 / 100 = £0.0089

So, the loose sweets are better value, as they cost only £0.0089 per gram, compared to £0.01242 per gram for the pre-packed sweets.

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The triangle above has the following measures
m/C=45 degrees
a=7.5 yd
Use the 45-45-90 Trangle Theorem to find the
length of the hypotenuse Include correct units.
Show all your work.

Answers

The length of the hypotenuse is given as follows:

b = 10.6 yd.

What is the Pythagorean Theorem?

The Pythagorean Theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.

The theorem is expressed as follows:

c² = a² + b².

In which:

c is the length of the hypotenuse.a and b are the lengths of the other two sides (the legs) of the right-angled triangle.

By the 45-45-90 Triangle Theorem, the two sides have the same length, hence:

a = c = 7.5.

Hence the hypotenuse b is obtained as follows:

b² = a² + c²

b² = 7.5² + 7.5²

[tex]b = \sqrt{7.5^2 + 7.5^2}[/tex]

b = 10.6 yd.

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#3 Solve the triangle. Round decimal to the nearest tenth

Answers

The missing measures for the triangle are given as follows:

m < B = 65º.a = 23.8. b = 32.2.

What is the law of sines?

Suppose we have a triangle in which:

Side with a length of a is opposite to angle A.Side with a length of b is opposite to angle B.Side with a length of c is opposite to angle C.

The lengths and the sine of the angles are related as follows:

[tex]\frac{\sin{A}}{a} = \frac{\sin{B}}{b} = \frac{\sin{C}}{c}[/tex]

The sum of the measures of the internal angles of a triangle is of 180º, hence the measure of angle B is obtained as follows:

m < B + 73 + 42 = 180

m < B = 180 - 115

m < B = 65º.

Then the relation is:

34/sin(73º) = a/sin(42º) = b/sin(65º).

Then the value of a is obtained as follows:

34/sin(73º) = a/sin(42º)

a = 34 x sine of 42 degrees/sine of 73 degrees

a = 23.8.

The value of b is obtained as follows:

34/sin(73º) = b/sin(65º)

b = 34 x sine of 65 degrees/sine of 73 degrees

b = 32.2.

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y=|x| translated one unit downward pls help

Answers

To translate the function y = |x| one unit value downward, we need to subtract 1 from the function: y = |x| - 1.

The function y = |x| is a V-shaped graph that passes through the origin and has a slope of 1 on both sides. It represents the absolute value of x, which means that the function always returns a positive value regardless of whether x is positive or negative.

To translate the function one unit downward, we need to subtract 1 from the function. This means that for any given value of x, the function will return the absolute value of x minus 1. For example, if x = 2, then y = |2| - 1 = 1. If x = -2, then y = |-2| - 1 = 1.

The resulting graph of y = |x| - 1 is still a V-shaped graph, but it is shifted down by one unit compared to the graph of y = |x|.

Thus, the slope of the graph remains the same on both sides, but the minimum value of y is now -1 instead of 0.

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Type the correct answer in the box. Use numerals instead of words.
For this item, if the answer is not a whole number, enter it as a fraction in simplest form using / as the fraction bar.

Isolde is stacking books. The stack of books forms a rectangular prism.



Each book is the same size. Isolde knows the area of the base of one book is 22 1/2 square inches and each book is 3/4 inch thick.

The volume of a stack of 9 books is cubic inches.

Answers

The volume of a stack of 9 books is 1368.75 cubic inches.

Volume of a book stack

To find the volume of a stack of 9 books, we first need to find the height of the stack. Since each book is 3/4 inch thick, the height of the stack is 9 times 3/4 inch, which is 6 3/4 inches.

Now we need to find the area of the base of the rectangular prism formed by the stack of books. Since each book has an area of 22 1/2 square inches, the total area of the base of the stack is 9 times 22 1/2 square inches, which is 202 1/2 square inches.

Therefore, the volume of the stack of 9 books is:

Volume = Area of base x heightVolume = (202 1/2 square inches) x (6 3/4 inches)Volume = 1368.75 cubic inches

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The wheels on a bike have a diameter of 26 inches. How many full revolutions will the wheels need to make to travel 100 feet?​

Answers

Answer:

Step-by-step explanation:

distance traveled by one revolution = circumference of the wheel

= 2πr = 2π(13 inches) = 26π inches

number of revolutions = distance traveled / distance traveled by one revolution

100 feet = 1200 inches

= 1200 inches / 26π inches

≈ 45.91 full revolutions

(15 POINTS) Help pls ty
When does the graph of a quadratic function have a minimum value?

(this is a recorded answer so make it short and simple please thanks!)

Answers

The graph of a quadratic function in the form of y = ax² + bx + c, where "a" is not equal to zero, has a minimum value when "a" is positive.

what is quadratic function ?

A quadratic function is a second-degree polynomial function of the form f(x) = ax² + bx + c, where "a", "b", and "c" are constants, and "a" is not equal to zero. The graph of a quadratic function is a U-shaped curve called a parabola.

In the given question,

The graph of a quadratic function in the form of y = ax² + bx + c, where "a" is not equal to zero, has a minimum value when "a" is positive. This is because the parabola opens upward, and the vertex of the parabola, which represents the minimum point of the function, is located at the point (-b/2a, c - b²/4a).

On the other hand, if "a" is negative, the graph of the quadratic function will have a maximum value. This is because the parabola opens downward, and the vertex of the parabola represents the maximum point of the function.

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Find the error and solve the problem correctly, DBA 8.10 Algebra 2

Answers

The 30th partial sum of the sequence 5x-12 = 1965

How is this so?

To derive the 30th partial sum of the sequence 5x -12, we need to add up to the first 30 terms of the sequence.

Th e nth term of the sequence will be:

5 -12

the first 30th terms are:

5(1) -12 = -7

5(2) -12 = -2

5(3) -12 = -3

5(4)  -12 = -8

and so on

So to get the 30th partial sum, we write:
-7 + (-2) = 3+ 8 ...... + (5(30)-12

If simplified, this expression will given us:

S = (n/2) (a+l)

In this case,

s is the sum of the n terms
A is the first term and
L is the last term.

In this ase, a = -7 (the first term) and L= 5(30) -12 = 138 (the 30th term) So  for the partial sum we say:

S30 = (30/2) (-7 + 138) = 30(131)/2
S30 = 1965

Thus, the partial sum of the sequence 5x-12) is 1965

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(CALC) The first derivative of the function f is given by f'(x)= cosx^2/ x -1/5. How many critical values does have on the open interval, (0,10) ?a) oneb) threec) fourd) fivee) seven

Answers

The function f has only one critical value on the open interval (0,10), and the answer is (a) one.

To find the critical values of the function f(x) on the open interval (0,10), we need to find the values of x where f'(x) is equal to zero or undefined.

First, we need to find the values of x where f'(x) is undefined. Since f'(x) contains a term of x in the denominator, it will be undefined at x = 0. However, since the interval we are interested in is (0,10), we can exclude this value.

Next, we need to find the values of x where f'(x) is equal to zero. We can set the numerator of f'(x) equal to zero and solve for x

cos(x²) = 1/5

Taking the inverse cosine of both sides, we get

x² = arccos(1/5)

x = ±√(arccos(1/5))

However, since we are only interested in the interval (0,10), we can discard the negative root. Using a calculator, we can find that

√(arccos(1/5)) ≈ 2.6779

Therefore, the correct option is (a) one

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What’s the answer? I need help please what’s the answer

Answers

The complex number with the greatest modulus is given as follows:

z1.

What is a complex number?

A complex number is a number that is composed by a real part and an imaginary part, as follows:

z = a + bi.

In which:

a is the real part.b is the imaginary part.

The modulus of the complex number is obtained as follows:

|z| = sqrt(a² + b²).

On the coordinate plane, we have that:

The x-axis is the real axis.The y-axis is the imaginary axis.

In this problem, we have that the complex number z1 has both the highest absolute value in the x-coordinate and in the y-coordinate, thus it has the largest modulus.

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does anyone know the answer to this?

Answers

The probability of selecting a J or an A on the second draw, given that an E was selected on the first draw is 0.101.

How to find the probability ?

The number of tiles which have an E on them are shown to be 12 which means that if an E was selected on the first draw, there are now 99 tiles left.

The probability that an A or J will be selected in this second draw would be :

= ( Number of A tiles and J tiles ) / 99

Number of A tiles = 9

Number of J tiles = 1

The probability is then :

= ( 9 + 1 ) / 99

= 10 / 99

= 10.1%

= 0.101

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In an illustration of an ant, the length of the ant is 6.5 centimeters. The actual size of the ant is 1.3 centimeters. What is the scale of the illustration?

Answers

Answer:

5

Step-by-step explanation:

6.5 / x = 1.3

multiply by x on each side to cancel it out

6.5 = 1.3x

/1.3   /1.3

x = 5

1.3 x 5 = 6.5

1. (07.01 MC) Masha solved an equation, as shown below: Step 1: 8x = 64 Step 2: x= 64 – 8 Step 3: x = 76 Part A: Is Masha's solution correct or incorrect? If the solution is incorrect, explain why it is incorrect and show the correct steps to solve the equation. (6 points) Part B: How many solutions does this equation have? (4 points)​

Answers

(1) The right solution of given equation is  8.(2)The equation 8x = 64 has only one solution

What is an Equation means ?

The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

Part A: Masha's solution is incorrect.

In Step 2, Instead of dividing 64/8 she did mistake she subtract 64 by 8

So, the correct step to solving this equation is

8x = 64

x = 64/8

x=8

Hence the right solution of given equation is  8

Part B: The equation 8x = 64 has only one solution, which is x = 8. This is because there is only one value of x that satisfies the equation.

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(1) The right solution of given equation is 8.

(2)The equation 8x = 64 has only one solution

What is an Equation means ?

The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

Part A: Masha's solution is incorrect.

In Step 2, Instead of dividing 64/8 she did mistake she subtract 64 by 8

So, the correct step to solving this equation is

8x = 64

x = 64/8

x=8

Hence the right solution of given equation is 8

Part B: The equation 8x = 64 has only one solution, which is x = 8. This is because there is only one value of x that satisfies the equation.

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the angle from a lookout at the top of a lighthouse (a) boat located at point c is 30 angle the boat travels towards the lighthouse and after 1 minute has travelled a distance of 50 meter and is now located at point b. the angle of elevation from the boat at b up to the lighthouse lookout is 60 angle. find the height of the lighthouse and find the speed of the boat in meters per second from c to b

Answers

We can use the fact that angle ACB is 30° to find v. We can use the tangent function:DB = CD - 50

DB = 2950 / v

What is trigonometry?

Trigonometry is a branch of mathematics that deals with the relationships between the sides and angles of triangles.

To solve this problem, we will use trigonometry and geometry.

First, let's draw a diagram to better understand the situation:

              /|

             / |

            /  | h

        b /   |

          ----

           d

    a         c

    |\        |

    | \       |

 H  |  \ h'   |

    |   \     |

    |    \    |

    |     \   |

    |      \  |

    |       \ |

    |        \|

   ------------

          D

In this diagram, we have the lighthouse at point A with height H, the boat at point C, and after traveling for 1 minute at a constant speed, it reaches point B. We are given that angle ACB is 30°, angle AHB is 90°, and angle ABH is 60°.

We need to find the height of the lighthouse and the speed of the boat from C to B.Let's start by finding the height of the lighthouse. We can use the tangent function:

tan(ABH) = H / d

tan(60) = H / d

sqrt(3) = H / d

H = sqrt(3) * d

Now, let's find the distance d. We can use the law of cosines:scss

d² = h² + (AB)² - 2 * h * AB * cos(ABH)

We know that AB = 50 meters, ABH = 60°, and h = CD - h', where CD is the distance the boat traveled from C to D and h' is the height of the boat at point D. We can also use the tangent function to find h':

tan(ACH) = h' / CD

tan(30) = h' / (CD + DB)

1/sqrt(3) = h' / (CD + 50)

h' = (CD + 50) / sqrt(3)

Substituting h' in the previous equation:

d² = (CD - (CD + 50) / sqrt(3))² + 50² - 2 * (CD - (CD + 50) / sqrt(3)) * 50 * cos(60)

d² = (CD² + 2 * CD * 50 / sqrt(3) + 2500 / 3) + 2500 - (CD² - CD * 50 / sqrt(3) + 2500 / 3)

d² = 10000 / 3 + CD * 100 / sqrt(3)

Finally, we can use the fact that angle ACB is 30° to find v. We can use the tangent function:

tan(ACB) = h' / (CD + DB)

tan(30) = (CD + 50) / sqrt(3) / (CD + DB)

1 / sqrt(3) = (CD + 50) / sqrt(3) / (CD + DB)

DB = CD - 50

DB = 2950 / v

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This is Ariana's method to divide 213 by 12 [tex]\frac{1}{2}[/tex]

213÷12 [tex]\frac{1}{2}[/tex]= 426÷25

= 852÷50

= 1704÷100

= 17.04

Answers

Using Ariana's method to  work out 135 ÷  12 1/2 without a calculator will gives us:  54/5 or 10.8.

What is Ariana's method?

Ariana's method for division involves breaking down the divisor into a more manageable fraction and adjusting the dividend accordingly. Here's how we can use this method to solve 135 ÷ 12 1/2 without a calculator:

Step 1: Rewrite the mixed number as an improper fraction:

12 1/2 = 25/2

Step 2: Determine the reciprocal of the fraction:

25/2 → 2/25 (reciprocal)

Step 3: Rewrite the division problem as multiplication by the reciprocal:

135 ÷ 12 1/2 = 135 x 2/25

Step 4: Simplify the expression:

135 x 2/25 = (27 x 5) x 2/25 = 54/5

Therefore, 135 ÷ 12 1/2 = 54/5 or 10.8 when rounded to one decimal place.

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how many different license plates consist of five symbols either digits or letters

Answers

There are 60,466,176 different license plates that consist of five symbols, either digits or letters.

To calculate the number of different license plates consisting of five symbols, we need to consider the number of choices for each symbol, which can be either digits (0-9) or letters (A-Z).
Determine the number of choices for each symbol.
There are 10 digits (0-9) and 26 letters (A-Z), so there are a total of 10 + 26 = 36 possible choices for each symbol.
Use the counting principle.
Since there are 5 symbols on the license plate and 36 choices for each symbol, we can use the counting principle to determine the number of different license plates.

The counting principle states that if there are n ways to do one thing and m ways to do another, then there are n x m ways to do both.

Calculate the number of different license plates.
The number of different license plates can be calculated as 36 × 36 × 36 × 36 × 36 = [tex]36^5[/tex] = 60,466,176.

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There are a total of 60,466,176 different license plates consisting of five symbols, either digits or letters. This is because there are 26 letters in the English alphabet and 10 digits, so the total number of symbols is 36.

To calculate the number of different license plates consisting of five symbols, we need to consider that each symbol can be either a digit (0-9) or a letter (A-Z). There are 10 digits and 26 letters, so there are 36 possible choices for each symbol.

To find the total number of different license plates, we use the following steps:

1. Determine the number of possible choices for each symbol (36, as explained above).
2. Since there are five symbols in the license plate, raise the number of choices (36) to the power of 5.
3. Calculate the result.

So, the calculation would be:

36^5 = 60,466,176

There are 60,466,176 different license plates that can be created using five symbols with either digits or letters.

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An event A will occur with probability 0.5. An event B will occur with probability 0.6. The probability that both A and B will occur is 0.1. If we know that B occurred, what is the probability that A occurred too? In other words, what is the conditional probability of A given B -- P(A|B)?

Answers

The conditional probability of A given B (P(A|B)) is 1/6, or approximately 0.167.

Conditional probability is the probability of an event occurring given that another event has already occurred.

It is denoted by P(A|B), where A and B are events, and P(A|B) represents the probability of event A occurring given that event B has already occurred

The formula for conditional probability is:

P(A|B) = P(A and B) / P(B)

To find the conditional probability of A given B (P(A|B)), we can use the formula
P(A|B) = P(A ∩ B) / P(B)
We are given:
P(A) = 0.5 (probability of event A occurring)
P(B) = 0.6 (probability of event B occurring)
P(A ∩ B) = 0.1 (probability of both A and B occurring)
Now, we can plug in the given values into the formula:
P(A|B) = 0.1 / 0.6
P(A|B) = 1/6.

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the base of a pyramid is a rectangle with a length of 7.5 cm and a width of 2 cm. what is the height if the volume is 50 cm^3

Answers

The solution to the given problem of volume comes out to be the pyramid is 10 cm tall.

What does volume actually mean?

The volume of a three-dimensional item, which is measured in cubic units, describes how much room it occupies. Liter and in3 are the symbols for cubic measures.

Here,

The formula: gives the volume of a pyramid.

=> V = base_area * height * (1/3)

The area of the base (base_area) of a pyramid whose base is a rectangle with dimensions of 7.5 cm in length and 2 cm in width can be computed as follows:

base_area equals length * width,

=> 7.5 cm * 2 cm =15 cm².

Additionally, we are informed that the pyramid's (V) volume is 50 cm3.

=> (1/3) * 15 * height = 50

=> height =  (3 * V)/base_area.

When V and base_area's values are entered, we obtain:

=> height = (15/15) / (3*50) = 10 cm

Consequently, the pyramid is 10 cm tall.

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