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Verdich [7]
3 years ago
9

At a school dance, the ratio of girls to boys is 8:3. If there are 528 students at the dance, how many are boys and how many are

girls?
Mathematics
1 answer:
weqwewe [10]3 years ago
6 0

Answer:

144 boys and 384 girls

Step-by-step explanation:

8 girls to every 3 boys. You can make an equation to solve this: 8x + 3x = 528. 528 = 11x. Then divide 528 by 11 to get 48. x=48. 8(48) = 384 girls. 3(48) = 144 boys.

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Scilla [17]

Answer:

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Step-by-step explanation:

Area of a circle with radius r: r^2\pi

Circumference of a sector with radius r: 2r\pi

Area of sector with angle \theta:  r^2\pi\cdot \frac{\theta}{360}.

Arc length of sector with angle \theta: 2r\pi\cdot \frac{\theta}{360}

Using these equations, we get the following information:

Area of circle: 27^2\pi=729\pi

Circumference of a circle: 2\cdot 27\cdot \pi=54\pi

Area of sector: 27^2\pi\cdot \frac{80}{360}=162\pi

Arc length of sector: 2\cdot 27\cdot \pi \cdot \frac{80}{360}=12\pi

3 0
3 years ago
In the linear equation y= 3/4x + 2 what does 2 represent?​
muminat

Answer: The y intercept.

Step-by-step explanation:

Using the form y = mx +b, m represents the slope and b is the y intercept. In the equation y = 3/4x + 2, the slope (m) = 3/4 and the y intercept (b) = 2

6 0
3 years ago
Solve for v. <br> v + 3/8 = -1/4
IceJOKER [234]
<span>v + 3/8 = -1/4
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3. Which graph indicates that one of the runners started 10 meters ahead of the other?
KATRIN_1 [288]

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graph A

Step-by-step explanation:

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Answer:

y=100x

Step-by-step explanation:

Given that x is the length measured in meters and

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Let us first have a look at the relationship between meters and centimeters units of length.

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Therefore, it can be said that:

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OR

x units of length in meters = 100x units of length in centimeters

It is given that y is the length in centimeters.

Therefore, the <em>proportional equation</em> can be written as:

y=100x

6 0
3 years ago
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