<PRE><B>Question 918701</B>
The cost of electricity in a certain city is $0.08 for each of the first 300 kWh (kilowatt-hours) and $0.13 for each kilowatt-hour over 300 kWh. Find the number of kilowatt-hours used by a family that receives a $46.10 electric bill
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Equation::
0.08*300 + 0.13x = 46.10
Multiply thru by 100 to get:
8*300 + 13x = 4610
13x = 4610-2400
13x = 2210
x = 170 hours
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Cheers,
Stan H.
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