There are 3/4 as many boys as girls in a class of fifth-graders if there are 35 students in the class how many a

Alright so turn 3/4 into a decimal.

3/4 =.75

We need to set up an equation. To do that are need to give boys and girls their own variables.

Girls = X

And since there is 3/4 as many boys

Boys=. 75X

Now we know the sum of boys and girls equals 35

X+.75X=35

X+.75X=1.75X

Now we have 1.75X=35

Divide by 1.75 and get

20=X

Now plug 20 into the equations got from before.

Boys =. 75*X = 20 *. 75 = 15

Girls = X = 20

Your Answer:

15 boys

20 girls

You can check

20+15=35

15/20=3/4