document.write( "Question 1105296: A car rental agency charges a flat fee plus an additional charge per kilometer. Chace drove a rental vehicle for 270km and was charged $46.80. Jennifer drove 480 km in a similar vehicle from the same agency and was charged $65.70. Determine the flat fee and the charge per kilometer. \n" ); document.write( "

Algebra.Com's Answer #720085 by ikleyn(52794) $\"\"$ $\"About$

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document.write( "f + 270r = 46.80    (1)\r\n" );
document.write( "f + 480r = 65.70    (2)\r\n" );
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document.write( "-------------------------Subtract eq(1) from eq(2):\r\n" );
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document.write( "    210r =  18.90  ====>  30r =  = $2.70 per 30 kilometers is the additional charge per 30 kilometers.\r\n" );
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document.write( "Then flat fee is f = 46.80 - 9*2.70 = 22.50 dollars.\r\n" );
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