document.write( "Question 1197016: A plane driver was needed at the production site of a SYFY movie. The average speed of the plane driver's flight to the site was 160 mph, and the average speed of the return trip was 120 mph. Find the distance of the round trip if the total flying time was 7 h. \r
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Algebra.Com's Answer #830072 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Hi  \r\n" );
document.write( "The average speed of the plane driver's flight to the site was 160 mph, \r\n" );
document.write( "and the average speed of the return trip was 120 mph\r\n" );
document.write( "Find the distance of the round trip if the total flying time was 7 hr\r\n" );
document.write( "D =rt   ***Distance is the same to and from:\r\n" );
document.write( "Let t be time at 120mph then (7-t) would be time at 160mph\r\n" );
document.write( " 160(7-t) = 120t\r\n" );
document.write( "   40t = 160\r\n" );
document.write( "     t = 4hr, time at 120mph\r\n" );
document.write( "  Distance = 4h * 120mph = 480mi\r\n" );
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document.write( "Wish You the Best in your Studies.\r\n" );
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