Federal law requires that all residential toilets sold in the United States use no more than 1 3/5 gallons of water per flush. Before this legislation, conventional toilets used 3 2/5 gallons of water per flush. Find the amount of water saved in one year by a family flushing the toilet 22 times daily if one conventional toilet is replaced with a new low-flow one. (1 year = 365 days)

Correct answer:

y =  14454 gal

Step-by-step explanation:

n=22 365=8030 V1=352=3+52=53 5+2=515+2=517=3.4 gal V2=153=1+53=51 5+3=55+3=58=1.6 gal  V=V1V2=51758=5178=59=1.8 gal  y=n V=8030 59=58030 9=572270=14454 gal

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