Question

Cara os making potato salad for a cook out. One serving of potato salad has 1 1/2 cups of cooked potatoes and 1/4 cup of mayonnaise. How many cups of potatoes would be needed if cara uses 3 1/4 cups of mayonnaise?

Answer 1

19.5

Explanation:

just look at the equation like this

1 1/2 - 1/4

???? - 3 1/4

divide 3 1/4 by 1/4 and multiply the result by 1 1/2

or just treat it as a ratio

1.5/x=.25/3.25