posted by Anonymous

Half the students in Max's class volunteer at the local community center. 15 students do not volunteer.if there are 12 boys in Max's class , how many girls are in Max's class? I am having a brain freeze!

1. Reiny

let the number of girls be x
total in class = x+12
number of students who do not volunteer
= (x+12)/2
but this is 15

(x+12)/2 = 15
x+12 = 30
x = 18

So there are 18 girls in the class.

2. MAAAAATHHH :(

this was really helpfull thx

3. WHY

..............

4. Thank you!

Thanks! This really helped me a lot! :)

5. LeBron

This is easy like the Cleveland browns

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7. Unicorn

I worked it out.

1/2(x+12)= 15
Then, divide 1/2(x+12) by 1/2 and the 15 by 1/2
x+12= 30
(x+12)-12 30 -12
x= 18

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