Question

Plz help me :)))))))))))))))))))))))))))))))))))))))))))))))))))))))

Answer 1

Answer: X=18

Step-by-step explanation:

let the numbers 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.

I hope this helped :)  Mark brainliest also ;)

Answer 2

Answer:

Step-by-step explanation:

Given, half of the students volunteer and half dont

The people who dont volunteer are 15 so

Total students 15+15=30

We know a class comprises of boys and girls in which 12 boys ate there so no. Of girls= 30-12= 18