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3 years ago

At summer camp the ratio of boys to girls is 7:1. 1. If there were 63 boys how many girls were there?

Mathematics

1 answer:

egoroff_w [7]3 years ago

7 0

7 boys: 1 girl

Multiply both numbers by 9

63 boys: 9 girls

Your answer is 9 girls

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Solve for x in simplest form. 14 = 1/3(8x + 6)

elena-s [515]

Answer:

x = 4.5

Step-by-step explanation:

14 = 8/3x + 2

12 = 8/3x

36 = 8x

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3 years ago

What is the value of X?

IRISSAK [1]

X=12
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3 years ago

A garden has a width of 24 feet and a diagonal length of 51 feet. What is the perimeter of the garden ( in feet )?

bekas [8.4K]

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Step-by-step explanation:

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3 years ago

The circle with center O has a minor arc BSA with a length of

tangare [24]

Answer:

D. $\frac{27\pi}{2}$ inches.

Step-by-step explanation:

We have been given that the circle with center O has a minor arc BSA with a length of $3\pi^{2}$ inches. The central angle is 40°.

To find the circumference of circle we will use formula:

$\frac{\text{Central angle}}{2\pi}=\frac{\text{Arc length}}{2\pi r}$ , where $2\pi$ = measure of 360 degrees in radians and $2\pi r$ = circumference of circle.

Let us convert measure of central angle into radians.

$40^{o}=\frac{40*\pi}{180} =\frac{2\pi}{9}$

Upon substituting our given value in the formula we will get,

$\frac{\frac{2\pi}{9}}{2\pi}=\frac{\frac{3\pi}{2}}{2\pi r}$

$\frac{2\pi}{18\pi}=\frac{3\pi}{4\pi r}$

$\frac{1}{9}=\frac{3}{4r}$

Cross multiplying we will get,

$4r=27$

$r=\frac{27}{4}$

Hence, the radius of our circle is 27/4 inches.

Since the circumference of circle is $2\pi r$ . Upon substituting $r=\frac{27}{4}$ we will get,

$2\pi r=2\pi* \frac{27}{4}=\frac{27\pi}{2}$

Therefore, circumference of our given circle will be $\frac{27\pi}{2}$ inches and option D is the correct choice.

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3 years ago

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OverLord2011 [107]

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3 years ago