Can you read this problem and give me the answer?

Question

To stay properly hydrated, a person should drink 32 fluid ounces of water every 60 minutes of activity. How much water should Damon drink if he rides his bike for 135 minutes?

Answer 1

Set up a proportion:

 

32 is to 60 as x is to 135

 

32/60 = x/135

 

x = 32(135)/60

 

x = 72 oz

Answer 2

The unit rate is:

 

32 floz/60 min = 8/15 floz per minute

 

The unit rate is the number of ounces the biker needs to drink each minute.  To figure out how many he needs to drink in 135 minutes, simply multiply the unit rate by 135.