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 ) For 1 hours machine uses 0.33 gallons of water

B ) For 1 gallon of water , machine will take 3  hours

Step-by-step explanation:

Given as :

∵ For every 9 hours , machines uses 3 gallons of water

∴ For           1  hour   , machines uses gallons of water

Or, For 1 hours machine uses   gallons of water

I.e  For 1 hours machine uses 0.33 gallons of water

Now, Again

∵ For 3 gallons of water , machine takes 9 hours

∴ For 1 gallon of water , machine will take hours

I.e For 1 gallon of water , machine will take 3  hours

Hence ,

A ) For 1 hours machine uses 0.33 gallons of water

B ) For 1 gallon of water , machine will take 3  hours

Answer

the correct answer is b) histograms can be used to exhibit the shape of distributions. this is because histograms count the frequency of each possible answer, so one is able to see which results are more common and which are less common.

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.