In this year’s 7th grade class, there are 4 boys for every 5 girls. how many girls are in the class if there are 20 boys in the class?

No. of girls  =25

Step-by-step explanation:

Ratio of boys: girls = 4:5

No. of boys = 4x

No. of girls = 5x

4x = 20    ( No.of boys = 20)

   x = 20/4

    x = 5

No. of girls = 5x = 5 * 5 =25

.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632