The ratio of parts water to parts lemon juice in lemonade is 5:2. If Quinten has 10 cups of lemon juice, how many cups of water will he need?

five is to 2 as X is to10 ratio 5 X
_ _ = 25
2 10

My math is better than my work with a computer. Put another way 5 divided by 2 and X divided by 10 = X =25