Answer:
336
Step-by-step explanation:
not completely sure but I'm pretty sure its 336
Just pretend it’s a 3d right angle triangle and find the length of the hypotenuse.
d = sqrt(6^2 + 10^2 + 15^2) = 19
The area formula for a triangle is 1/2 (base * height)
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<u>Answer</u><u>:</u></h3>

<h3>
<u>Explan</u><u>ation</u><u>:</u></h3>
First, convert any mixed numbers to fractions. An easy way to convert:

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=</h3>

Then, apply the fractions formula for division.

Then, simplify.

Hello there!
Your correct answer will be 35 people under 16.
You know that 1/3 of the people are teachers, which means that 2/3 of people are left. Now, you need to get to the decimal value (.667). Make that number 1.667, because there will not be less teachers than students. Now, multiply:
1.667 x 21 = 35
There you go!
Brady