Question

Sidney made root beer floats for her friends when they came over. The table shows the ratio of cups of ice cream to cups of soda used to make the floats.

Ice Cream (cups) Soda (cups)
3.5 10.5
8 24
12.5 37.5
17 ?


At this rate, how much soda will Sidney use for 17 cups of ice cream?
42 cups
51 cups
54 cups
62 cups

Answer 1

The ratio is soda = 3 × ice cream (3.5→10.5, 8→24, 12.5→37.5). For 17 cups ice cream: 17 × 3 = 51 cups of soda. Answer: 51 cups.