Question

To make fruit punch, susannah mixes lemonade with orange juice in the ratio 5:9 she uses 40 ounces of lemonade. How many ounces of orange juice does she use?

Answer 1

Not 100% sure if this is correct but:

40/5 = 8 - therefore - 8x9 = 72

I believe she uses 72 ounces of orange juice