An ice machine uses 3 gallons of water every 9 hours How many gallons of water does it use each hour? How many hours does it take to use one gallon?
A)gallon per hour, 1 hour
B)gallon per hour; 3 hours
C)3 gallons per hour, 1/9 hour
D) 1/3 gallon per hour
1/3 hour

D

Step-by-step explanation:

1/3 x 9 = 3

1/3 gallon per hour, and it takes 3 hours to use one gallon

Step-by-step explanation:

Simplify the ratio

3-9

Which simplifies to

1-3

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step-by-step explanation: