SOLUTION: the cost of electricity in a certain city is 0.08 for each of the first 300k wh a month and 0.13 for eack kilowatt hour over 300k wh a month. find the amount of money a family pays

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Question 450738: the cost of electricity in a certain city is 0.08 for each of the first 300k wh a month and 0.13 for eack kilowatt hour over 300k wh a month. find the amount of money a family pays with a monthly use of 425 k wh.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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the cost of electricity in a certain city is 0.08 for each of the first 300 kwh a month and 0.13 for each kilowatt hour over 300 kwh a month.
find the amount of money a family pays with a monthly use of 425 k wh.
:
Find the no. of kwh over 300 kwh: 425 - 300 = 125 kwh
:
cost = .08(300) + .13(125)
c = 24.00 + 16.25
c = $40.25
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