Mathematics, 16.10.2020 20:01 brysonbegay3400
The Hydro water department has a monthly service charge of $15.50 and a volume charge of $1.73 for every 100 cubic feet of water.
The total monthly cost is equal to the service charge plus the charge for the volume used during the month. If we let x represent the number of cubic feet of water (in hundreds) and y represent the total monthly cost, then we have:
total monthly cost = volume charge + service charge
y = 1.73x + 15.50
If the Johnson family used 300 ft3 less water this month than last month, then they can expect
an increase in their water bill of $46.50.
B.
a decrease in their water bill of $46.50.
C.
an increase in their water bill of $5.19.
D.
a decrease in their water bill of $5.19.
Answers: 1
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