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supatsarah
 3 years ago
The Hydro water department has a monthly service charge of $14.40 and a volume charge of $1.10 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 = 1.1x + 14.40
If the Johnson family used 200 ft3 less water this month than last month, then they can expect
supatsarah
 3 years ago
The Hydro water department has a monthly service charge of $14.40 and a volume charge of $1.10 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 = 1.1x + 14.40 If the Johnson family used 200 ft3 less water this month than last month, then they can expect

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supatsarah
 3 years ago
Best ResponseYou've already chosen the best response.0an increase in their water bill of $28.80. a decrease in their water bill of $2.20. an increase in their water bill of $2.20. a decrease in their water bill of $28.80.
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