document.write( "Question 296118: Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $135.00 for 3 days and 300 miles, while Mary was charged $250.00 for 5 days and 600 miles. What does Best Rentals charge per day and per mile? \n" ); document.write( "
Algebra.Com's Answer #213473 by mananth(16946)\"\" \"About 
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Barney was charged $135.00 for 3 days and 300 miles, while Mary was charged $250.00 for 5 days and 600 miles. What does Best Rentals charge per day and per mile? \r
\n" ); document.write( "\n" ); document.write( "let charge per day be $ x\r
\n" ); document.write( "\n" ); document.write( "& charge per mile be $ y\r
\n" ); document.write( "\n" ); document.write( "3x+300y =135 ( nultiply by 5 )\r
\n" ); document.write( "\n" ); document.write( "5x+600y= 250 ( multiply by 3) To eliminate x\r
\n" ); document.write( "\n" ); document.write( "3(5x+600y)-5(3x+300y) = 3*250 - 5*135\r
\n" ); document.write( "\n" ); document.write( "15x+1800y-15x-1500y= 750-675\r
\n" ); document.write( "\n" ); document.write( "300y = 75 \r
\n" ); document.write( "\n" ); document.write( "y= 75/300\r
\n" ); document.write( "\n" ); document.write( "y= 1/4 = 25 cents per mile\r
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\n" ); document.write( "\n" ); document.write( "3x+300 *1/4 =135\r
\n" ); document.write( "\n" ); document.write( "3x+75=135\r
\n" ); document.write( "\n" ); document.write( "3x=135-75\r
\n" ); document.write( "\n" ); document.write( "3x=60\r
\n" ); document.write( "\n" ); document.write( "x= 20 \r
\n" ); document.write( "\n" ); document.write( "The charges are $20 per day and 25 cents per mile\r
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