Number of boys: number of girls=11: 9there are 124 boys more than girls. what is the total number of student at the school?

boys (b): g + 124

girls (g): g

Total (T): b + g

I am going to set up a proportion based on boys to total students.

⇒  

⇒ 11(124 + 2g) = 20(124 + g)

⇒ 1364 + 22g = 2480 + 20g

⇒ 1364  + 2g = 2480

⇒              2g = 1116

⇒                g = 558

boys (b): g + 124   = (558) + 124   = 682

Total (T): b + g   = 682 + 558   = 1240

1240 total students

10

step-by-step explanation:

7+3=10

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer