Question

In Mrs. Morales' class, the ratio of boys to girls is 3:7. If there are 30 students in her class,how many of

of them are girls?

Answer 1

Actually 21 of them are girls.

Explanation:

Make a table with 3 and 7 like this

3|7

6|14

9|21

* remember to add together each side every time you multiply to make sure you get 30