document.write( "Question 456929: A family determined the average cost of maintaining and operating the family car to be about $.30 per mile. On one trip, the family drove at an average rate of 50 miles per hour for a total of 6.5 hours. On the second trip, they drove at an average rate of 55 miles per hour for a total of 6 hours. which trip cost more? how much more? \n" ); document.write( "
Algebra.Com's Answer #313545 by richwmiller(17219)\"\" \"About 
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50*6.5=325
\n" ); document.write( "55*6=330
\n" ); document.write( "330-325=5 miles more
\n" ); document.write( "5*.30=1.50\r
\n" ); document.write( "\n" ); document.write( "The second trip cost $1.50 more.\r
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