Answer:
2/3Step-by-step explanation:
In order to divide fractions, you'll have to multiply the first number by the second number's reciprocal.
So it would be 1 4/5 times the reciprocal of 2 7/10.
Reciprocal of 2 7/10 = Reciprocal of 27/10 = 10/27.
So 1 4/5 x 10/27 = 2/3
Answer:
2/3
Step-by-step explanation:
1 4/5 ÷ 2 7/10
Convert these into improper fractions
(Denomintaor × whole number + numerator)/denoninator
(5 × 1 + 4)/5
9/5
(10 × 2 + 7)/10
27/10
Now the equation says:
9/5 ÷ 27/10
Use the method copy dot flip, meaning rewrite the first fraction, change the division sign to multiplication, and use the reciprocal of the last fraction
9/5 × 10/27
Multiply the numerators and denominators separately
(9 × 10)/(5 × 27)
90/135
Simplify
Both 90 and 135 can evenly fit 15
90 ÷ 15 = 6
135 ÷ 15 = 9
6/9
This can still be simplified further
Both 6 and 9 can evenly fit 3
6 ÷ 3 = 2
9 ÷ 3 = 3
2/3
This cannot be simplified any further
how can i show m 2 = 2m 1
Answer:
Step-by-step explanation:
m
2
+
2
m
+
1
2
Check that the middle term is two times the product of the numbers being squared in the first term and third term.
2
m
=
2
⋅
m
⋅
1
Rewrite the polynomial.
m
2
+
2
⋅
m
⋅
1
+
1
2
Factor using the perfect square trinomial rule
a
2
+
2
a
b
+
b
2
=
(
a
+
b
)
2
, where
a
=
m
and
b
=
1
.
(
m
+
1
)
2
Please help ASAP!! I will appreciate it
Answer: D
Step-by-step explanation:
Determine if the relationship ship is an additive. If it is, make a equation to match.
Answer:
No it is not
Step-by-step explanation:
In an additive relationship, two quantities can be expressed as related to each other through addition. It can be written as y = x + a, where y is related to x through the addition of a constant, “a”.
In this scenario, the "a" is not constant
1+2=3, 5+3=8, and 9+4=13
the number is increasing by one each time
need explaining with working out
Therefore , the solution of the given problem of triangle comes out to be a=6 and b=17.
A triangle is what exactly?An triangle is a polygon since it has four or more parts. It is a simple geometric shape. A square having angles A, B, and C is referred to as a triangle ABC. When the sides are not collinear, Euclidean geometry generates a single plane and square. If a triangle has three sides and three corners, it is a polygon. The corners of a triangle are where its three sides meet. The sum of the angles in a triangle is 180 degrees.
Here,
Given : A right triangle ,
=> 8²+a²= 10²
=> a² = 100 -64
=> a² =36
=> a =6
For b,
=> b² = 8² + 15²
=> b² = 64 + 225
=> b² = 289
=> b = 17
Therefore , the solution of the given problem of triangle comes out to be a=6 and b=17.
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A truck is traveling 30 mi ahead of a car at an average rate of 55 mph. The car is traveling at a rate of 63 mph. Let x represent the number of hours that the car and truck travel. Write an inequality to determine at what times the car will be ahead of the truck and graph the inequality to solve.
An inequality to determine at what times the car will be ahead of the truck is; 63x > 55x + 30
The graph of the inequality is attached and the solution is (3.75, 236.25).
How to graph Inequality problems?We are told that;
x represent the number of hours that the car and truck travel
The truck is traveling at an average rate of 55 mph. Thus, the expression 55x represents the distance the truck travels in x hours.
The car is traveling at a rate of 63 mph. Thus, the expression 63x represents the distance the car travels in x hours.
In the beginning, the truck was 30 miles ahead of the car. So, we need to solve the inequality:
63x > 55x + 30
Use technology to graph y = 63x and y = 55x + 30 gives us;
The intersection point is (3.75, 236.25)
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The scale is 2 cm = 15 m. Find the length each measurement would be in a scale drawing of 180 m
The length of measurement would be in a scale drawing of 180 m is 24 cm.
What is scale factor?A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).
The basic formula to find the scale factor of a figure is expressed as,
Scale factor = Dimensions of the new shape ÷ Dimensions of the original shape.
Given that, the scale is 2 cm = 15 m.
So, 1 m =2/15
A scale drawing of 180 m
Now, 180 m = 2/15 ×180
= 2×12
= 24 cm
Therefore, the length of measurement would be in a scale drawing of 180 m is 24 cm.
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At Six Flags, 1,473 people entered the park in 3 hours. At Hershey Park, they had 944 guests
enter the park in 2 hours. If the rates were constant the entire time, which park had more
people enter in the first hour?
Six Flags:
1,473/3 = 491 people per hour.
Hershey Park:
944/2 = 472 people per hour.
Six Flags has more people in the first hour. Six Flags has 19 more people than Hershey Park.
491>472
I hope this helps you!!
Find the indicated measure in LMNQ. Explain your reasoning
Answer:
29°
Step-by-step explanation:
In given parallelogram LMNQ, you want the measure of angle LMQ when angle MQN is given as 29°.
Alternate interior anglesAngles LMQ and MQN are alternate interior angles where transversal MQ crosses parallel lines LM and NQ. As such, they are congruent.
m∠LMQ = 29°
In the sketchpad, solve 27 x 7 with an area model.
Following is the area model of 27 x 7 = 189.
An area model is a rectangular graphic used in mathematics to multiply and divide two numbers or expressions.
The length and breadth of the rectangle are determined by the factors, also known as the quotient and divisor. In other words, you can divide a large area (in this case, a 23 37 rectangle) into smaller ones, calculate the areas of each separately, and then sum them to determine the overall area.
Which steps comprise the area model?Write the enlarged form of each factor first. Next, sketch your model. To determine the area of each smaller rectangle, multiply next. To find the entire area, add those items last.
20 7
7 140 49
27 × 7 = 140 + 49 = 189
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A scale model of a merry-go-round and the actual merry-go-round are similar.
a. How many times greater is the base area of the actual merry-go-round than the base area of the scale model? Explain.
The ratio of the corresponding lengths is w : 1. So, the ratio of the areas is y : 1 and the base area of the actual merry-go-round is z times greater than the base area of the scale model.
I will give you a brainliest if you answer this!!!
b. What is the base area of the actual merry-go-round in square feet?
The base area of the actual merry-go-round is x square feet.
Answer:
A mary go round I'm sorry I am middle school
Sara's dog is 5 years younger than Anna's dog. Let A represent Anna's dog and S represent Sara's dog. Complete the table using the equation S = A − 5.
Answer: c
Step-by-step explanation:
IF MNOP IS A RHOMUS FIND MP
MNOP is a rhombus then, the length of the segment MP = 49 unit.
What is a rhombus?One kind of parallelogram is the rhombus, which has four sides and four vertices.
The length of each side is the same as the length of the opposing angle.
Given:
A rhombus is given in the attached image.
In rhombus,
every side is equal in length.
That means,
the parallel sides are equal.
9x - 77 = 3x + 7
6x = 84
x = 14
So, 3(14) + 7 = 42 + 7 unit
That means, the side in rhombus = 49 unit.
Therefore, MP = 49 unit.
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The complete question is given in the attached image.
Determine whether the results appear to have statistical significance, and also determine whether the results appear to have practical significance.
In a study of a birth sex selection method used to increase the likelihood of a baby being born female, 2085 users of the method gave birth to 1019 males and 1066 females. There is about a 169
chance of getting that many babies born female if the method had no effect.
Because there is a 16% chance of getting that many babies born female if the method had no effect, the method
procedure that raises the likelihood of a baby born female from the approximately 50% rate expected by chance to the produced by this method.
(Round to the nearest integer as needed.)
So, this method
has statistical significance.
should be used to make conclusions.
has practical significance.
does not have practical significance.
4
%
couples would likely use a
Because there is a 16% chance of getting that many babies born female if the method had no effect, the method has no statistical significance. Hence couples would likely use a procedure that raises the likelihood of a baby born female from the approximately 50% rate expected by chance to the 51.13% produced by this method.
This means that the method has practical significance.
What is the relation between the p-value and the conclusion of the test hypothesis?Depends on if the p-value is less or more than the significance level:
If it is more, the null hypothesis is not rejected, meaning that the research study is not statistically significant.If it is less, it is rejected, meaning that the research study is statistically significant.The p-value for this problem is given as follows:
0.16.
As the p-value is greater than the standard significance level of 0.05, the method has no statistical significance.
The percentage of females born is given as follows:
1066/2085 x 100% = 51.13%.
As this percentage is an increase from the usual 50%, the method has practical significance.
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10 POINTS!
This graph shows a proportional relationship.
What is the constant of proportionality?
Answer: The constant of proportionality is 12.
Step-by-step explanation: You can start by dividing 36 by 3 60 divided by 5 then 72 divided by 6 and then 84 divided by 7. All of the division problems have an answer of 12. So the constant of proportionality is 12.
Figure ABCD is a rectangle. Find the
value of x.
B
A
x + 11
E
x = [?]
6x +1
C
D
Enter
Answer:
x=2
Step-by-step explanation:
x+11=6x+1
10=5x
x=2
The graph shows the relationship between time and the number of soda bottles a machine can make. Use the points (5,250) and (8,400) to find the numbers of soda bottles the machine can make each minutes.
The graph demonstrates the relationship, and it indicates that the machine can produce 1200 soda bottles every minute.
what is unitary method ?The unitary technique is sometimes useful for multiplying and dividing by fractions because it makes sense immediately and can be done mentally if the numbers add up. This makes it a good method for defending or explaining frequently employed written fractional algorithms, like division by a fraction. The unitary technique has a formula that involves finding the value of a single unit, multiplying it by the quantity of units, and then finding the desired value.
given
y=20x
The total number of bottles produced in the specified amount of time, expressed in seconds, is represented by y.
When x=1 and y=20, the machine can produce 20 soda bottles each second.
There are 60 seconds in a minute, thus when x=60, y=20*60 equals 1200 drink bottles.
The graph demonstrates the relationship, and it indicates that the machine can produce 1200 soda bottles every minute.
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Use A Double Integral To Find The Volume Of The Solid Shown In The Figure.
_________ cu units
Without the specific function it is not possible to give you the exact solution and also without knowing the specific limits of the integral, it is not possible to evaluate the definite integral.
The solid in the figure is a rectangular prism with a cutout, the cutout is a cylinder with radius 2. The volume of the solid can be found by using a double integral.
The first integral represents the volume of the rectangular prism, and the second integral represents the volume of the cylinder cut out of it. The limits of the double integral are determined by the dimensions of the rectangular prism and the cylinder.
The volume of the rectangular prism = (x-coordinate max - x-coordinate min) * (y-coordinate max - y-coordinate min) * (z-coordinate max - z-coordinate min)
The volume of the cylinder = ∫∫[2<= [tex]\sqrt{x^{2} + y^{2} }[/tex] <= 2.5] dA
The limits of the double integral are determined by the dimensions of the rectangular prism and the cylinder
The x-coordinate min is 0, x-coordinate max is 4, y-coordinate min is 0, y-coordinate max is 6, z-coordinate min is 0, and z-coordinate max is 6.
The volume of the solid
= (4 - 0) * (6 - 0) * (6 - 0) - ∫∫[2<= [tex]\sqrt{x^{2} + y^{2} }[/tex] <=2.5] dA
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Every day your heart creates enough energy to drive a truck for 32 kilometers. If you combined the energy created all the students in your math class for a week, how many meters could the truck drive?
(DUE TODAY)
(TYSM FOR YOUR TIME)
PLEASE SHOW FULL WORK:)
Fernando has $1,608 in an account. The interest rate is 1% compounded annually.
To the nearest cent, how much will he have in 5 years?
Answer:
$1688.40
Step-by-step explanation:
1% of 1608 = 16.08
16.08 (5) = 80.40
1608+ 80.40= 1688.40
Marcella wants to earn a total of at least $4,000 per month. For each company, find the least number of office machines she would need to sell each month in order to meet this goal. Show your work.
Answer:
1540$!$($9$
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Marcella would need to sell at least 40 office machines each month to earn at least $4,000.
To find the least number of office machines Marcella would need to sell each month to earn at least $4,000, we need to know the price of each office machine and the commission she receives for each sale.
We can use following formula:
Total Earnings = (Number of Machines Sold) x (Price of Machine) x (Commission Rate)Rearranging this formula to solve for the number of machines sold, we get:
Number of Machines Sold = Total Earnings / (Price of Machine x Commission Rate)Plugging in the values we know:
Number of Machines Sold = 4000 / (1000 x 0.1)
Number of Machines Sold = 4000 / 100
Number of Machines Sold = 40
Therefore, Marcella would need to sell at least 40 office machines each month to earn at least $4,000.
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1. Janice donates 100 items of clothing to the Salvation Army. There were four times as many shirts as there were pants. How many shirts and pants did Janice donate? Write and solve a system of equations to answer the question.
2. Amy and Mike have 56 video games between them. Amy has 8 more games than Mike. How many games does each of them have? Write and solve a system of equations to answer the question.
Janice donated 20 pants and 80 t-shirts of clothing to the Salvation Army.
What are linear and non-linear functions?A straight line on the coordinate plane is represented by a linear function. As an illustration, the equation y = 3x – 2 depicts a linear function because it is a straight line in the coordinate plane.
Any function whose graph is not a straight line is said to be nonlinear. Any curve other than a straight line can be a graph of it.
An example of a non-linear function is a quadratic function.
Given, Janice donates 100 items of clothing to the Salvation Army and the number of t-shirts were 4 times the number of pants.
Therefore, If the number of pants is 'x' then the number of t-shirts are '4x'.
So, x + 4x = 100.
5x = 100.
x = 20.
So, The number of pants are 20 and the number of t-shirts are 80.
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Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options. x2 + (y – 3)2 = 36 x2 + (y – 5)2 = 6 (x – 4)² + y² = 36 (x + 6)² + y² = 144 x2 + (y + 8)2 = 36
The equation that represents circles that have a diameter of 12 units and a center that lies on the y-axis is x²+ (y-3)² = 36
What is equation of a circle?We should know that a circle is a set of points on a circle that are equal from a fixed point
The standard form for finding the equation of a circle is expressed as;
(x-a)² + (y-b)² = b=r²
where; (a, b) is the center of the circle
r is the radius of the circle
Given the following
Diameter = 12 units
radius = 12/2 = 6 units
If the center lies on the y-axis, the center will be at (0, 3)
Therefore, Substituting into the formula, we will have (x-0)² + (y-3)² = 6² which is equivalent to x²+ (y-3)² = 36
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In ordered pair, notations, right down the components of vector D
Expression answers to the nearest integer
So on solving the provided question, we can say that n the graphs we have A at origin; B at origin; C in 3rd quadrant; D in the 2nd quadrant
What is graphs?Mathematicians use graphs to logically convey facts or values using visual representations or charts. A graph point will typically reflect a relationship between two or more things. Nodes, or vertices, and edges make form a graph, a non-linear data structure. Glue together the nodes, often referred to as vertices. This graph has vertices V=1, 2, 3, 5, and edges E=1, 2, 1, 3, 2, 4, and (2.5), (3.5). (4.5). Statistical charts (bar charts, pie charts, line charts, etc.) graphical representations of exponential growth. a logarithmic graph in the shape of a triangle
here in the graphs we have
A at origin
B at origin
C in 3rd quadrant
D in the 2nd quadrant
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use the triangle sum theorem to find 7x + 4x + x = 180
Answer: x = 15
Step-by-step explanation: Combine like terms
7 x plus 4 x plus x equals 180
12 x equals 180
2
Divide both sides by the same factor
12 x equals 180
the fraction with numerator 12 x and denominator 12 end fraction equals the fraction with numerator 180 and denominator 12 end fraction
3
Simplify
Solution
x equals 15
What is the degree of the polynomial? 4x^2y^3-2x^2+7y-8
The degree of the given polynomial is 5.
What is polynomial?A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and positive-integer powers of variables.
Given is a polynomial, 4x²y³-2x²+7y-8
We know that, A polynomial of two variable x and y, like ax^ry^s is the algebraic sum of several terms of the prior mentioned form, where r and s are possible integers.
Here, the degree of the polynomial is r+s where r and s are whole numbers.
Therefore, in the given polynomial, the degree will be
4x²y³
Taking the powers,
2+3 = 5
Hence, the degree is 5
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Evelyn wants to enlarge a 5” x 7” photograph. She plans to enlarge it to fit a frame that is 16” x 20”. Will Evelyn’s photo retain the same proportions? Explain your reasoning.
Evelyn’s enlarged photo will not retain the same proportions as the original one.
What is proportion?Proportion is a mathematical comparison between two numbers. According to proportion, if two sets of given numbers are increasing or decreasing in the same ratio, then the ratios are said to be directly proportional to each other. Proportions are denoted using the symbol "::" or "=".
Given,
Length of the original photograph L = 5''
Width of the original photograph W = 7''
Ratio between length and width of original photograph
L/W = 5/7
Length of the enlarged photograph L' = 16''
Width of the enlarged photograph W' = 20''
Ratio between length and width of enlarged photograph
L'/W' = 16/20 = 4/5
Comparing both ratios
L/W = L'/W'
5/7 ≠ 4/5
so, proportion is not same.
Hence, proportion of the enlarged photo is not same as the original photo.
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f(x)=x³+x² - 6x=c then find the X- intercept of f(x)
Therefore , the solution of slope intercept comes out to be X intercept for the function is x = - 1
What does slope intercept mean?In math, the intersection is where the line's slope intersects the y-axis. a point on a line or curve where the y-axis crosses. The formula for the linear line is given as Y = mx+c, whereby m denotes the slope и c the y-intercept. In the intercept form of the equation, the line's slope (m) and y-intercept (b) are highlighted. The slope and y-intercept of an equation with the intercepting form (y=mx+b) are m and b, respectively. There are several equations that can be rewritten to appear to be slope detections. The slope and como are both modified to 1 if y=x is translated as y=1x+0, for example.
Here,
It is the point where a line or curve crosses the X axis
The function f(x) = x³ + x² - 6x = c
Let, y = f(x) = x³ + x²- 6x -c =0
at the X intercept, y = 0,
so, 0 = x³+ x²- 6x -6
x²(x +1) - 6(x +1) =0
(x +1) ( x²-6) = 0
x = -1, x = √6
X intercept is x = -1
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What value is missing from the table?
Answer: D - 14
Step-by-step explanation:
1 gallon = 2.15
So to find how many gallons is worth 30.10, divide by 2.15
30.10 ÷ 2.15 = 14
Answer:
Step-by-step explanation:
To find the required gallons of gas for 30.10$, you can use the following formula:
Required gallons of gas=Cost of required gallons of gas/cost of one gallon of gas
Here given that, the cost of required gallons of gas is 30.10$ and the cost of one gallon of gas is 2.15$
Now apply the formula:
Required gallons of gas = 30.10$/2.15$ = 14
Therefore, the required gallons of gas = 14
So 14 gallons of gas costs 30.10$
Option D is the correct answer.
The perimeter of a rectangular parking lot is 354 m . If the width of the parking lot is 83 m , what is its length?
The perimeter of a rectangle is given by the formula P = 2(L + W), where P is the perimeter, L is the length, and W is the width.
We know that the perimeter of the parking lot is 354 m, and the width of the parking lot is 83 m. We can use this information to find the length of the parking lot.
Substituting the known values into the formula, we get:
354 = 2(L + 83)
Simplifying the equation:
354 = 2L + 166
Subtracting 166 from both sides:
188 = 2L
Dividing both sides by 2:
L = 94
The length of the parking lot is 94 m.
Answer:
Step-by-step explanation:
Formula for perimeter = (2 * length) + (2* width) = Perimeter
2l + (83 * 2) = 354
2l + 166 = 354
2l = 354 - 166
2l = 188
l = 188/2
l = 94 m
A gear wheel with 9 teeth plays into a gear wheel with 27 teeth. When the smaller wheel has made 42 revolutions, how many
revolutions has the larger wheel made?
A) 14
B) 16
C) 120
D) 126
Show work please
Answer:
A) 14
Step-by-step explanation:
When a small is gear connected to a larger gear, the smaller gear makes more revolutions than the larger gear. Use the ratio of the numbers of teeth to find the ratio of the numbers of revolution.
1 gear has 9 teeth
1 gear has 27 teeth
27/9 = 3
The ratio is 3:1.
The small gear makes 3 revolutions for each revolutuion of the large gear.
The large gear makes 1/3 revolution for each revolution of the small gear.
Here, the small gear makes 42 revolutions.
42/3 = 14
The large gear makes 14 revolutions.
Answer: A) 14
The larger gear has made 14 revolutions when the smaller gear has made 42 revolutions. This is because the ratio of the teeth on the gears is 1:3, which is also the ratio of their revolutions.
Explanation:The ratio of the number of teeth on the two gears is also the ratio of the number of rotations they make. In this case, the smaller gear has 9 teeth and the larger gear has 27 teeth. So, the ratio is 9:27, which simplifies to 1:3.
This means that for every one rotation of the larger gear, the smaller gear will make three rotations.
Since the smaller gear has made 42 rotations, to figure out the number of rotations the larger gear has made, you would divide 42 by 3. (because of the 1:3 ratio). The answer is 14.
Therefore, the larger gear has made 14 revolutions when the smaller gear has made 42 revolutions. So, the correct answer is A) 14.
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