Answer:
First find out the how many gallons of water does it use each hour .
To prove
As given
An ice machine uses 3 gallons of water every 9 hours.
3 gallons of water = 9 hours
[tex]Water\ uses\ by\ ice\ machine\ in\ one\ hours = \frac{3}{9}[/tex]
Water uses by ice machine in one hours = 0.33 gallons (Approx)
Now find out how many hours does it take to use one gallon .
As given
An ice machine uses 3 gallons of water every 9 hours.
3 gallons of water = 9 hours
[tex]Hours\ take\ by\ ice\ machine\ to\ use\ one\ gallons\ of\ water = \frac{9}{3}[/tex]
Hours take by ice machine to use one gallons of water = 3 hours.
