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alexandr1967 [171]
2 years ago
10

A ratio of boys to girls in the classroom is 4 to 5 if there are 20 girls how many boys would there be

Mathematics
1 answer:
Viktor [21]2 years ago
8 0

Answer:

16 to 20

Step-by-step explanation:

Let's do our math.

4 to 5

8 to 10

12 to 15

16 to 20

In order to get to 20, you'd have to multiply 5 by 4. So in order to get an equal ratio, you multiply 4 by 4 and get 16.

I hope this helps!

-No one

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The side lengths of the following right triangle 15,20 and 25, as shown below. The altitude from the right angle splits the hypo
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Answer:

h = 12

x = 9

y= 16

Step-by-step explanation:

Given

The attached triangle

Required

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A = \frac{1}{2} * 15 * 20

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A = \frac{1}{2} * 300

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So, the area is:

A = \frac{1}{2}  * 25 * h

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h = \frac{150 *2}{25}

h = 6 *2

h = 12

Considering the smallest triangle

Hypotenuse = 15

So:

15^2 = h^2 + x^2

15^2 = 12^2 + x^2

This gives:

15^2 - 12^2 = x^2

81 = x^2

Take square roots

9 =x

x = 9

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x + y = 25

y= 25 - x

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2 years ago
Is 4*10^4 greater than 3*10^5
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717177Step-by-step explanation:

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3 years ago
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William invested $2,300 in an account paying an interest rate of 2 1/8% compounded quarterly. Nolan invested $2,300 in an accoun
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Answer:

$478

Step-by-step explanation:

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2300 · (1 + .0023)^240

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Can not be bothered to write the question so ima just attach it
stellarik [79]

Use desmos graphing calculator, for visuals. It's easy to use as well.

A is 0 (zero)

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