Question

Amy is using a recipe for punch for a party that uses 1/3 cup of orange juice and 3/4 cup of pineapple juice. How many cups of orange juice are needed if she has 9 cups of pineapple juice?

Answer 1

This is a ratio.

Let's call orange juice `o` and pineapple juice `p`.

So, `1/3o:3/4p`.

Now we need 9 cups of pineapple juice.

Multiplying both sides by `12`, we get:

`4o:9p`.

This is what we want because there are 9 cups of pineapple juice.

Therefore, the answer is 4 Cups of Orange Juice.

Yay!