document.write( "Question 404549: Charlie is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices. \r
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document.write( "Company A charges $127 and allows unlimited mileage.
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document.write( "Company B has an initial fee of $55.00 and charges an additional $0.90 for every mile driven.
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document.write( "For what mileages will Company A charge at least as much as Company B? Use m for the number of miles driven, and solve your inequality for m . \r
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document.write( "my answer-please check me
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document.write( "a=127
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document.write( "b=55+.9m
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document.write( "127=55+.9m
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document.write( "72=.9m
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document.write( "m=80 \r
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document.write( "I'm not sure if the answer should be m>=80 or m<=80\r
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Algebra.Com's Answer #285894 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Charlie is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices. \n" ); document.write( "Company A charges $127 and allows unlimited mileage. \n" ); document.write( "Company B has an initial fee of $55.00 and charges an additional $0.90 for every mile driven. \n" ); document.write( "---- \n" ); document.write( "A(x) = 127x dollars \n" ); document.write( "B(x) = 55 + 0.9x dollars \n" ); document.write( "---- \n" ); document.write( "For what mileages will Company A charge \"at least as much\" as Company B? Use m for the number of miles driven, and solve your inequality for m . \n" ); document.write( "my answer-please check me \n" ); document.write( "a=127 \n" ); document.write( "b=55+.9m \n" ); document.write( "Solve: a >= b \n" ); document.write( "127 >= 55+.9m \n" ); document.write( "72 >= 0.9m \n" ); document.write( "m <= 72/0.9 \n" ); document.write( "--- \n" ); document.write( "m <= 80 miles (a >= b when # of miles <= 80) \n" ); document.write( "======================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "===== \n" ); document.write( " \n" ); document.write( " |