five-ninths times four equals two and two-ninths.
What is an Algebraic Expression?
An algebraic expression is a combination of numbers, variables, and mathematical operations such as addition, subtraction, multiplication, and division. It is a mathematical phrase that can contain one or more terms separated by mathematical operators.
For example, 3x + 4y - 2z is an algebraic expression that contains three terms: 3x, 4y, and -2z. Each term is made up of a coefficient and a variable, where the coefficient is the numerical value that multiplies the variable.
In algebraic expressions, variables are used to represent unknown values, and the expression can be evaluated by substituting known values for the variables. For instance, if x = 2, y = 3, and z = 1, then the expression 3x + 4y - 2z can be evaluated as 3(2) + 4(3) - 2(1) = 12.
Algebraic expressions can also include exponentiation, roots, and other advanced mathematical operations. They are widely used in mathematics and other fields, such as physics and engineering, to represent relationships between variables and to model real-world situations
To solve five-ninths times four, we multiply 5/9 by 4, which gives:
5/9 x 4 = 20/9
So, the expression "five-ninths times four" is equal to 20/9.
Out of the options given, the answer closest to 20/9 is "two and two-ninths," which can be written as 20/9. Therefore, the answer is:
Therefore, five-ninths times four equals two and two-ninths.
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what is standard deviation variance squared ?
Standard deviation variance squared is the measure of dispersion the most often used, along with the standard deviation, that is simply the square root of the variance.
In the standard deviation of squared variance, the variance is the mean squared difference between the each data point and the center of the distribution, measured by mean. The larger the squared value of the standard deviation variance, the more spread out the data.
It is calculated keeping in mind the square of standard deviation. And provides measure of the dispersion that is more sensitive to extreme values in the dataset than standard deviation alone.
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The solution to the equation
log2x + log2(x – 6) = 4 is x =
still If we plug in x = -2 into the original equation.
What is the logarithm?A logarithm is a mathematical function that helps to determine how many times a particular number must be multiplied by itself to obtain a specific value. In other words, the logarithm of a number is the exponent to which another fixed value, called the base, must be raised to produce that number.
Given by the question.
Using logarithm rules, we can simplify the left-hand side of the equation:
log2x + log2(x – 6) = log2(x (x – 6))
So, the equation becomes:
log2(x (x – 6)) = 4
Using the description of logarithms, we can rewrite this as:
[tex]2^{4}[/tex] = x (x – 6)
Simplifying the left-hand side, we get:
16 = [tex]x^{2}[/tex] – 6x
Moving all the terms to one side, we get a quadratic equation:
[tex]x^{2}[/tex] – 6x – 16 = 0
We can break this using the quadratic formula:
x = [6 ± sqrt ([tex]6^{2}[/tex]+ 4(1)(16))] / 2
x = [6 ± sqrt (100)] / 2
x = [6 ± 10] / 2
x = 8 or x = -2
still, we need results are valid, because we cannot take the logarithm of a negative number or of zero.
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what is the FOIL method and how does it connect with polynomials?
Answer:
The FOIL method is a technique used to multiply two binomials. The word "FOIL" is an acronym that stands for "First, Outer, Inner, Last." I will dive in it briefly for u!
Step-by-step explanation:
To use the FOIL method, you multiply the first term of the first binomial with the first term of the second binomial. Then, you multiply the outer terms (first term of the first binomial and the second term of the second binomial), followed by the inner terms (second term of the first binomial and the first term of the second binomial), and finally the last terms (second term of both binomials). You then combine the like terms to simplify the result.
The FOIL method is especially useful when multiplying polynomials, which are expressions with one or more terms involving variables with various powers. For example, to multiply the binomials (x + 3) and (x - 2), you would use the FOIL method as follows:
First: x × x = x²
Outer: x × (-2) = -2x
Inner: 3 × x = 3x
Last: 3 × (-2) = -6
Combine the like terms: x² - 2x + 3x - 6 = x² + x - 6
Thus, the product of (x + 3) and (x - 2) is x² + x - 6.
Answer:
The FOIL method is a mnemonic device used to multiply two binomials. It stands for "First, Outer, Inner, Last" and it is a step-by-step process that helps to remember the order of operations for multiplying binomials. When multiplying two binomials, the FOIL method involves multiplying the first terms, then the outer terms, then the inner terms, and finally the last terms, and then adding the resulting terms together to simplify the expression.
The FOIL method is used in polynomial algebra because it is an efficient way to multiply two polynomials of degree one, also known as binomials. When multiplying two binomials, we can use the FOIL method to distribute each term in the first binomial to each term in the second binomial, resulting in a new polynomial expression. This method allows us to simplify polynomial expressions and solve equations by factoring, which is a crucial skill in algebra and calculus.
In summary, the FOIL method is a mnemonic device used to multiply two binomials by remembering the order of operations for each term. This method is commonly used in polynomial algebra because it is an efficient way to simplify polynomial expressions and solve equations by factoring.
why are brackets used s multiplication signs
Brackets are used for multiplication to expand and simplify an expression.
We must multiply out the brackets in order to extend and simplify an expression. The resulting phrase is then made simpler by grouping like terms together. Our method for removing brackets is known as expanding brackets or multiplying them out. Factorization is being done in reverse.
In some non-standard or informal contexts, such as with some programming languages or computer systems, brackets are employed as multiplication signs. When accessing items of an array or list in various programming languages, square brackets may also be used to denote multiplication in specific circumstances. As an example, the formula 2(3) instructs you to multiply 2 by 3 to generate the number 6.
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Evaluate
7
1
/
6
−
3
5
/
8
.
Answer:
3.542
Step-by-step explanation:
7 1/6 - 3 5/8 = (85/24) = 3(13/24) ≅ 3.5416667.
7⅙ - 3⅝ = 8524 = 3 1324 ≅ 3.5416667 (simplified) = 3.542
5 more than the product of 3 and a number y is less than or equal to the sum of another number z and 14
The algebraic expression of the statement is 5 + 3y ≤ z + 14
How to determine the algebraic expressionFrom the question, we have the following parameters that can be used in our computation:
5 more than the product of 3 and a number y is less than or equal to the sum of another number z and 14
When represented as expression, we have
5 + 3y is less than or equal to z + 14
As an inequality, we have
5 + 3y ≤ z + 14
hence, the expresion si 5 + 3y ≤ z + 14
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if a person draws a playing card and checks its color and then spins a six-space spinner what's the sample space of possible outcomes?
The sample space of possible outcomes are S= {(B,1),(B,2),(B,3),(B,4),(B,5),(B,6),(R,1),(R,2),(R,3),(R,4),(R,5),(R,6)}.
What is a sample space?A sample space is a set of potential results from a random experiment. The letter "S" is used to denote the sample space. Events are the subset of possible experiment results. Depending on the experiment, a sample area could contain a variety of results.
Given that, a person draws a playing card and checks its color and then spins a six-space spinner.
The sample space of possible outcomes using B, R for the card outcomes and 1, 2, 3, 4, 5, 6 for the spinner outcomes.
The sample space is S= {(B,1),(B,2),(B,3),(B,4),(B,5),(B,6),(R,1),(R,2),(R,3),(R,4),(R,5),(R,6)}.
Therefore, the sample space of possible outcomes are S= {(B,1),(B,2),(B,3),(B,4),(B,5),(B,6),(R,1),(R,2),(R,3),(R,4),(R,5),(R,6)}.
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"Your question is incomplete, probably the complete question/missing part is:"
If a person draws a playing card and checks its color and then spins a six-space spinner, describe the sample space of possible outcomes using B, R for the card outcomes and 1, 2, 3, 4, 5, 6 for the spinner outcomes. (Make sure your answers reflect the order stated.)
The sample space is S={ }.
(Use a comma to separate answers as needed.)
Question 3(Multiple Choice Worth 2 points)
(Effects of Changes in Data MC)
The shoe sizes of a group of middle school girls are shown.
5.5 6 7 8.5 6.5
6.5 8 7.5 8 5
If a shoe size of 7 is added to the data, how does the IQR change?
The IQR becomes a 2.5.
The IQR becomes a 1.5.
The IQR remains a 3.
The IQR remains a 2.
If a shoe size of 7 is added to the data the IQR remains the same 2. Option D is the correct answer.
What is IQR?The interquartile range (IQR) in descriptive statistics is a measurement of statistical dispersion, or the spread of the data. The IQR is also known as the middle 50%, the fourth spread, or the H-spread. The difference between the data's 75th and 25th percentiles is how it is defined.
By using linear interpolation, the data set is separated into quartiles, or four rank-ordered even sections, to determine the IQR.
The shoe size in increasing order are written as:
5,5.5,6,6.5,6.5,7,7.5,8,8.5
The median of the data is:
Median = 5th value
Median = 6.5
The IQR of the data is given as:
IQR = Q2 - Q1
IQR = (7.5 + 8)/ 2 - (5.5 + 6) / 2
IQR = 2
When 7 is added to the data, the new order is:
5,5.5,6,6.5,6.5,7,7,7.5,8,8.5
The median of the new data is:
Median = 5th + 6th value/ 2
Median = (6.5 + 7)/2 = 6.75
The IQR of the data is given as:
IQR = Q2 - Q1
IQR = (7.5 + 8)/ 2 - (5.5 + 6) / 2
IQR = 2
Hence, if a shoe size of 7 is added to the data the IQR remains the same 2. Option D is the correct answer.
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A marble has a radius of 9 cm. Find the volume of the marble.
We can calculate this using this equation:
[tex]V =\dfrac{4}{3}\pi r^3[/tex]
Solving the Question[tex]V =\dfrac{4}{3}\pi r^3[/tex]
We're given that the radius is 9 cm:
[tex]V =\dfrac{4}{3}\pi (9)^3\\\\V=3053.63[/tex]
AnswerV = 3053.63 cm³
What is 7.1093 round to the nearest hundredth?
The number round to the nearest hundredth according to the rules is 7.11.
The steps to round the digits to nearest hundredth are as follows -
Step 1 - Firstly read the number and analyse the number at the position hundredth. We see that 0 is present at the hundredth position.
Step 2 - Now check the number on the right hand side of the number. We see that it is 9.
Step 3 - If the number is greater than 5, then add one to the prior digit (the one at hundredth position).
Step 4 - Write the final number using above points. The number will be 7.11. The number 3 will be dropped as we are directed to shorten the number.
The rounded number is 7.11.
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Given f(2) = 12, which of the following could be an equation of the function?
A.
f(x) = 8x – 2
B.
f(x) = 4x + 4
C.
f(x) = 6x – 4
D.
f(x) = –4x – 4
We can use the given value of f(2) = 12 to determine the correct equation for the function.
A. f(x) = 8x - 2
If we plug in x = 2, we get f(2) = 8(2) - 2 = 14, which does not match the given value of 12.
B. f(x) = 4x + 4
If we plug in x = 2, we get f(2) = 4(2) + 4 = 12, which matches the given value of 12.
C. f(x) = 6x - 4
If we plug in x = 2, we get f(2) = 6(2) - 4 = 8, which does not match the given value of 12.
D. f(x) = -4x - 4
If we plug in x = 2, we get f(2) = -4(2) - 4 = -12, which does not match the given value of 12.
Therefore, the correct equation for the function could be f(x) = 4x + 4, or choice B.
16. To the nearest hundredth of a mile per hour, a luge rider's top speed was 81.73
mph. What are some possible speeds to the thousandth of a mile per hour?
Some possible speeds to the thousandth of a mile per hour are 81.729 mph, 81.730 mph, 81.731 mph
How to find possible speeds to the thousandth of a mile per hourTo find some possible speeds to the thousandth of a mile per hour, we can look at the two nearest thousandths above and below the given speed of 81.73 mph.
The nearest thousandth below 81.73 is 81.729, and the nearest thousandth above is 81.731. Therefore, some possible speeds to the thousandth of a mile per hour are:
81.729 mph
81.730 mph
81.731 mph
All these speeds are all within 0.001 mph of the given speed of 81.73 mph.
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i dont know how to do this help me
Answer:
x=180
Step-by-step explanation:
what is 64 cube root
The cube root of 64 is 4, which is the value that, when multiplied by itself three times, equals 64.
The cube root of a number is the value that, when multiplied by itself three times, equals the original number. In the case of 64, the cube root is 4, because 4 multiplied by itself three times equals 64:
4 × 4 × 4 = 64
This can also be written using the cube root symbol (∛), as follows:
∛64 = 4
The cube root is an important mathematical operation used in a variety of fields, including engineering, physics, and finance. It is also used in everyday life, such as when calculating the dimensions of boxes or when determining the amount of material needed for a construction project.
It's important to note that the cube root is just one of several types of roots that can be taken of a number, including the square root (which is the value that, when multiplied by itself twice, equals the original number) and higher-order roots such as the fourth or fifth root.
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If the length of an aqueduct is to be 3000 meters, what will be drop at the end destination if the slope is 0.5%?
The drop at the end destination of the aqueduct would be 15 meters.
To see why, we can use the formula:
drop = slope * length
where the slope is given as 0.5% (or 0.005 as a decimal) and the length is given as 3000 meters.
So,
drop = 0.005 * 3000 = 15
Therefore, the drop at the end destination of the aqueduct would be 15 meters.
Brody and his children went into a movie theater and he bought $44.50 worth of
drinks and pretzels. Each drink costs $6 and each pretzel costs $3.25. He bought a
total of 12 drinks and pretzels altogether. Determine the number of drinks and the
number of pretzels that Brody bought.
Answer:
10 pretzels and 2 drinks
Step-by-step explanation:
2 drinks are 12
10 pretzels are 32.50
Answer:
2 drinks, 10 pretzels
Step-by-step explanation:
d = # of drinks
p = # of pretzels
1) d + p = 12
2) $6d + $3.25p = $44.50
solve equation 1 for d: d = 12 - p substitute this into equation 2 and solve for p
6(12 - p) + 3.25p = 44.50
72 - 6p + 3.25p = 44.50
-2.75p = 44.50 - 72
-2.75p = -27.50
p = -27.50/-2.75 = 10 plug this into equation 1 and solve for d
d = 12 - 10 = 2
double check the answers: 6(2) + 3.25(10) = 44.50 correct!
How to calculate corporate governance
Answer:
Focus on strategic measures.
Develop performance measurement skills.
Get board and CEO buy-in.
Track progress over time.
Measure often.
Step-by-step explanation:
Which function is not graphed correctly? Help needed ASAP!!
Answer:
Step-by-step explanation:
A is not graphed correctly. The graph is turned upside down from what it should be.
What is one solution to the trigonometric equation sinx − cos^2 x - 1 = 0 in the interval [0, 2π]?
The solution to the trigonometric equation given in the task content is; π / 2.
What is a solution to the given trigonometric equation?Given; sin x − cos² x - 1 = 0 in the interval [0, 2π].
Recall; cos² x = 1 - sin² x
Therefore; sin x − 1 + sin² x - 1 = 0
sin² x + sin x - 2 = 0
Let, y = sin x;
y² + y - 2 = 0
y = -2 or y = 1
Therefore, the valid value of y is; y = 1.
Therefore; 1 = sin x
x = sin-¹ (1)
x = 90° = π/2.
Consequently, the one solution which represents the solution as required is; π / 2.
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Find the magnitude of ax , the acceleration of the car after the brakes are applied. Express your answer in terms of some or all of the variables d , treact , and v0
The magnitude of the car's acceleration after the brakes are applied is:
a = 2 × (d - vo × treact) / treact^2
Initially, the car is traveling at a constant velocity of magnitude vo, so its acceleration is zero. When the driver notices the garbage can, the car has a distance d from the can.
After the driver applies the brakes, the car slows down at a constant rate until it comes to a stop just before the garbage can. Let a be the magnitude of the car's acceleration during this period.
The distance traveled by the car during this time can be expressed as the sum of two distances: the distance traveled while decelerating from vo to zero velocity, and the distance traveled while the car is at rest.
The distance traveled while decelerating can be calculated using the equation:
d = (vo × treact) + (1/2 × a × treact^2)
The distance traveled while the car is at rest is zero, since the car is not moving.
Setting d equal to the initial distance between the car and the garbage can (d = d), and solving for a, we get:
a = 2 × (d - vo × treact) / treact^2
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The given question is incomplete, the complete question is:
A car is traveling at a constant velocity of magnitude vo when the driver notices a garbage can on the road in front of him. At that moment, the distance between the garbage can and the front of the car is d. A time treact after noticing the garbage can, the driver applies the brakes and slows down at a constant rate before coming to a halt just before the garbage can. What is the magnitude of the car's acceleration after the brakes are applied?
what will happend to the curve, When two variables move in oppositeA) downward sloping, and we say the variables are negatively relatedB) upward sloping, and we say the variables are positively related..
A negative relationship exists when two connected variables move in opposite directions. As a result, Option A is right which has a downward slope and variables that are negatively correlated.
An inverse correlation, sometimes referred to as negative correlation, is a relationship between two variables in which, when one variable's value is high, the other variable's value is likely low.
For instance, with the variables A and B, when A is high, B is low, and when A is low, B is high. In statistical nomenclature, an inverse correlation is frequently expressed by the correlation coefficient "r," which has a value between -1 and 0, with r = -1 signifying complete inverse correlation.
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how to solve an inequality
While solving an inequality, you can do the following: add the same amount to each side, deduct the same amount from each side, and multiply or divide each side by the same positive amount. When each side is multiplied or divided by a negative number, the inequality sign must be flipped.
Inequalities may be solved in the same way as any other mathematical problem, but they require some extra steps to guarantee you get the correct solution.
Identify the terms in the inequality first. After that, simplify the equation such that it just has one variable.
Then, attempt to isolate the variable in the equation. To do this, carry out any necessary procedures on both sides of the equation to cancel out the terms that are unrelated to the equation.
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What is factors of 37 ?
The factors of 37 are 1 and 37. This is because 1 is a factor of every number, and 37 is a prime number that is only divisible by 1 and itself.
The factors of 37 are the numbers that can be multiplied together to get 37 as a product. In other words, the factors of 37 are the divisors of 37 that divide it evenly without a remainder.
Therefore, 1 and 37 are the only numbers that can be multiplied together to get 37 as a product.
It is important to note that the factors of a number are always positive integers since negative numbers cannot be multiplied together to give a positive result.
Additionally, every number has at least two factors, 1 and itself, and some numbers may have many more factors depending on their prime factorization.
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Question
HELP NEEDED FAST!!
Write the equation of the line in slope-intercept form that passes through the coordinates (6, -5) and (8, -6).
Responses
y−6=−12(x+5)
y minus 6 is equal to negative 1 half times open paren x plus 5 close paren
y=−12x−2
y is equal to negative 1 half x minus 2
y=12x−8
y is equal to 1 half x minus 8
y=−12x+8
An equation of the line in slope-intercept form that passes through the coordinates (6, -5) and (8, -6) is: B. y = -1/2(x) - 2; y is equal to negative 1 half x minus 2
How to determine an equation of this line?In Mathematics, the point-slope form of a straight line can be calculated by using this mathematical expression:
y - y₁ = m(x - x₁) or y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)
Where:
m represents the slope.x and y are the points.At data point (6, -5), a linear equation in standard form for this line can be calculated by using the point-slope form as follows:
y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)
y - (-5) = (-6 - (-5))/(8 - 6)(x - 6)
y + 5 = (-6 + 5)/(8 - 6)(x - 6)
y + 5 = -1/2(x - 6)
y = -1/2(x) + 3 - 5
y = -1/2(x) - 2
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in a regression model, outliers may be identified by examining the?
in a regression model, outliers may be identified by examining the Residual. Seeing how far the data points are away from the regression is how you can determine outliers.
What's a residual in finance?
A residual or balloon payment is a final lump sum you're needed to pay at the end of your loan term to enjoy an asset outright. generally, the lump sum is original to – or lower than – the downgraded value of the asset.
What are exemplifications of residual?
Residual describes what remains after utmost of commodity is gone. It's an nearly formal word for what is leftover. However, also you have some residual bitterness, If you've gotten over your bifurcation but you still have the appetite to protest your partner.
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A house was valued at $384,000. Over several years, the value increased by 18%, giving the house a new value.
The new value of the house will be $453120.
How can we express : "a% of b" ?We can write : a% of b as -
a% of b = a/100 x b
a% of b = ab/100
Given is that a house was valued at $384,000. Over several years, the value increased by 18%.
We can write the new value as -
{x} = 384000 + 18% of 384000
{x} = 384000 + 18/100 x 384000
{x} = 384000 + 18 x 3840
{x} = 384000 + 69120
{x} = 453120
Therefore, the new value of the house will be $453120.
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The Tabletop Games club, a student-led campus group, hosted a virtual concert last week to raise awareness about their club and bring community members together. They sold full-price tickets for$7. 00, tickets for senior citizens were $5. 25and student tickets cost $5. 50. After the concert, they counted up the totals. There were a total of 215 tickets sold, and ticket sales brought in $1,214. 0. It was noted that there were 3 times as many senior citizen tickets sold as there were full-price tickets. Write and solve a linear system to determine how many of each type of ticket were sold. There were _____full-price tickets. There were ____senior citizen tickets. There were ____student tickets
There were 42 full-price tickets sold, 126 senior citizen tickets sold, and 47 student tickets sold.
Let's define the variables:
Let's call the number of full-price tickets sold "f".
Let's call the number of senior citizen tickets sold "s".
Let's call the number of student tickets sold "t".
From the problem statement, we know:
The total number of tickets sold is 215: f + s + t = 215
The total revenue from ticket sales is $1,214.00: 7f + 5.25s + 5.50t = 1214
The number of senior citizen tickets sold is 3 times the number of full-price tickets sold: s = 3f
We can use the third equation to substitute "3f" for "s" in the first two equations, and simplify:
f + 3f + t = 215 -> 4f + t = 215
7f + 15.75f + 5.50t = 1214 -> 22.75f + 5.50t = 1214
Now we have two equations with two variables, which we can solve using any method of our choice. For simplicity, we will use the substitution method:
From the first equation, we can isolate "t":
t = 215 - 4f
We can substitute this expression for "t" in the second equation, and solve for "f":
22.75f + 5.50(215 - 4f) = 1214
22.75f + 1182.5 - 22f = 1214
0.75f = 31.5
f = 42
So, there were 42 full-price tickets sold. We can use the third equation to find the number of senior citizen tickets sold:
s = 3f = 3(42) = 126
Finally, we can use the first equation to find the number of student tickets sold:
f + s + t = 215 -> 42 + 126 + t = 215 -> t = 215 - 42 - 126 = 47
Therefore, there were 42 full-price tickets sold, 126 senior citizen tickets sold, and 47 student tickets sold.
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what is grain to gram ?
Although both grains and grams are weight-measuring units, they are not interchangeable.
The weight of gunshots, arrows, and gunpowder is often measured in the United States using a unit of mass called a grain. A grain weighs around 0.06479891 grams.
In contrast, a gram is a mass unit in the International System of Units (SI) that is often employed in scientific and practical contexts. There are 15.4323584 grains in one gram.
You may multiply the total number of grains by 0.06479891 to convert grains to grams. If you have 500 grains, for instance, you would convert them to grams as follows: 500 grains x 0.06479891 grams per grain = 32.399455 grams.
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Miss Chen puts the same number of art supplies at each of 12 work stations. Each work station receives several containers of paints and 3 paint brushes. Miss Chen uses 132 items in all.
Which equation can be used to determine the number of containers of paint, p, at each work station?
Answer:
11 containers of paint and 3 paint brushes
Step-by-step explanation:
The equation that can be used to determine the number of containers of paint, p, at each work station is p = 132 / (12 * 3) = 11. Therefore, each work station receives 11 containers of paint and 3 paint brushes
You work at a hardware store earning $8. 50 per hour. You work no more than 40 hours each week. Your friend says that the function y = 8. 5x represents the amount of money you earn each week where the domain of x > 40 represents the number of possible hours you work. Is your friend correct? Explain
Answer:3.5
Step-by-step explanation: