Question

If it takes 5.7 gallons an hour how many cups will it take a minute

Answer 1

What do you mean by "it takes?"  What is "it?"

This problem involves two changes in units of measurement.  We need two different conversion factors here.  

1) 60 minutes = 1 hour

2) 4 cups = 1 quart; 4 quarts = 1 gallon.  Can you now convert 5.7 gallons to cups per hour?  Cups per minute?  Please share your work.

Answer 2

1 gallon = 16 cups
1 hour   = 60 min

16 cups = 60 min
5 gallons =180 min/ 3 hrs

1 cup = 3.75 minutes