Question

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?

Answer 1

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

`Water\ uses\ by\ ice\ machine\ in\ one\ hours = (3)/(9)`

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

`Hours\ take\ by\ ice\ machine\ to\ use\ one\ gallons\ of\ water = (9)/(3)`

Hours take by ice machine to use one gallons of water = 3 hours.

Answer 2

3 gallons = 9 hours
3/9 gallons = 1 hour

3 gallons = 9 hours
1 gallon = 9/3 hours

Therefore, It will use 1/3 gallons of water each hour and will use 1 gallon in 3 hours