cross products that are equivalent

Question

Tape diagram to solve. Situation: For every 2 scoops of ice tea mix, add 4 cups of water. If added 64 cups of water, how many scoops of ice tea mix are needed.

8 8 = 16

8 8 8 8 8 8 8 8 8 = 64

Name two ratios that are equivalent from the above example. Guess. 4 and 16

Prove using cross products that they are equivalent.

_____ = _______?

Answer 1

64/4=16

16/2=32

32 scoops of ice tea mix