document.write( "Question 918702: 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 \n" ); document.write( "
Algebra.Com's Answer #557200 by stanbon(75887)\"\" \"About 
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answered:: 170 hrs.
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