Math with Mrs. Sarah

(Rusczyk, Prealgebra)

The ratio of cats to dogs in a pet shop is 2 : 5. If there are 25 dogs in the shop, then how many cats are there?

Mrs. Miller’s class has a ratio of girls to boys of 4 : 3. If there are 35 students in the class, then how many of them are girls?

A 10-foot length of rope is cut into two pieces whose lengths are in the ratio 1 : 4. What is the length of the longer piece?

My aunt’s candy jar has 56 pieces of candy. She only has butterscotch and jelly beans, and the ratio of butterscotch to jelly beans is 5 : 2. I like jelly beans more, and I want to add some jelly beans so that the ratio of butterscotch to jelly beans is 2 : 1. How many jelly beans should I add?