Question

The number of boys in ninth grade is 12 less than twice the number of girls. There are 51 students in ninth grade. How many are girls?

Answer 1

First, you should write an equation for your statement.
If you put B for the number of boys and G for the number of girls, your equation would be
B=2G-12

Answer 2

Then, you find out B (the number of boys) is 51. So, you just evaluate the expression.
51=2G-12

Answer 3

So what would the answer be, 31.5?

Answer 4

Yes.

Answer 5

Thank you

Answer 6

Your welcome.