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3 years ago

15

five times as many girls as boys went to the dance. The total of 120 students went to the dance. How many boys and girls went to

the dance?

1 answer:

ryzh [129]3 years ago

8 0

Answer:

100 girls and 20 boys

Step-by-step explanation:

since its 5 times as many girls multiply 20 by 5 which is 100 and then boom 20 boys cause 100 divided by 5 is 20

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3 years ago

find the measure of the central angle of a circle if it's minor are length is 14π and the radius is 18 inches

MrMuchimi

Step-by-step explanation:

Length of arc of a circle is given as:

$l = \frac{ \theta}{360 \degree} \times 2\pi \: r \\ \\ \therefore \: 14\pi = \frac{ \theta}{360 \degree} \times 2\pi \: \times 18 \\ \\ \therefore \:\theta = \frac{14\pi \times \: 360 \degree }{2\pi \: \times 18} \\ \\ \therefore \:\theta = \frac{7 \times \: 360 \degree }{18} \\ \\ \therefore \:\theta = 7 \times \: 20 \degree \\ \\ \huge \red{ \boxed{\therefore \:\theta = 140 \degree}}$

Thus, the measure of central angle is 140°.

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3 years ago

A triangle has side lengths of ,m,3m,and 3m+3. what is the perimeter of the triangle

Galina-37 [17]

Answer:

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Step-by-step explanation:

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4 years ago

How to graph y=-3x+15

steposvetlana [31]

Answer:

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The you do the slope which is 3

so you always do rise over run for slope.

If 3 were a fraction it would be 3/1 so go up 3 points and the go right 1 point from (0,15)

hope this helps .-.

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4 years ago

I need help with this question

Temka [501]

Answer:

It would be b I think

Step-by-step explanation:

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3 years ago

Read 2 more answers