Question

In a high school, 7% of the students play the piano. This is 21 students. Choose the expressions that complete each step involved in setting up and solving the proportion that represents the situation.
Set up a proportion:

Cross multiply:

Answer 1

Hello,

Set up a proportion :

7 → 21

100 → ?

Cross multiply :

100 * 21 / 7 = 300 students

Bye :)