document.write( "Question 337564: A car went 372 miles in 6 hours, traveling part of the time at 55 miles per hour and part of the time at 70 miles per hour. How long did the car travel at each speed? \n" ); document.write( "
Algebra.Com's Answer #241999 by chiexpert(48)\"\" \"About 
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A car went 372 miles in 6 hours, traveling part of the time at 55 miles per hour and part of the time at 70 miles per hour. How long did the car travel at each speed?
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\n" ); document.write( "\n" ); document.write( "D=RT\r
\n" ); document.write( "\n" ); document.write( "1ST -------D=55T
\n" ); document.write( "2ND----------372-D=70(6-T)\r
\n" ); document.write( "\n" ); document.write( "372-55T = 70(6) -70T\r
\n" ); document.write( "\n" ); document.write( "372-420=-70T+55T\r
\n" ); document.write( "\n" ); document.write( "48 = 15T\r
\n" ); document.write( "\n" ); document.write( "48/15=T 3.2 HOURS
\n" ); document.write( "3 HOURS AND 1/5 OF AN HOUR OR 12 MINUTES FOR THE FIRST 55 MPH\r
\n" ); document.write( "\n" ); document.write( "AND 3HOURS AND 48 MINUTES AT 70 MPH\r
\n" ); document.write( "\n" ); document.write( "According to my grid, \"t\" stands for the time spent on the first part of the trip, so my answer is \"The CAR DROVE for 3 hours AND 12 MINUTES at 55 mph and 2 HOurs AND 48 MINUTES at 70 mph.\"
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