Answer:
16 boys
Step-by-step explanation:
Lets go with easy example:
20% of 100 students means 20 students: what is done there
- We converted 20% to 20/100 so

Lets do the same with 80 students as well
Answer:
<h2><u><em>
x +20 = 20 + 4 -x +10 </em></u></h2><h2><u><em>
</em></u></h2><h2><u><em>
(x =7)</em></u></h2>
Step-by-step explanation:
equation with a variable on both sides that equal 27
x +20 = 20 + 4 -x +10

<u>Answer</u><u>:</u>
<u>
</u>
Hope you could get an idea from here.
Doubt clarification - use comment section.
Answer:
9. He doesn't owe her anything back,since he already paid it in full price
10. >:((
11. She is 1.5 meters below sea level
12. She took $75.15 out of her account
Step-by-step explanation:
Answer:
<h2>x = 42.9 m</h2>
Step-by-step explanation:
ΔNPM and ΔABM are similar (AAA). Therefore the corresponding sides are in proportion:

We have

Substitute:
<em>cross multiply</em>
<em>divide both sides by 67.2</em>
