document.write( "Question 429220: A train can travel 280 miles in the same time that it takes a car to travel 140 miles. If the train is 40 miles per hour faster than the cars, find the average rate for each. \n" ); document.write( "

Algebra.Com's Answer #298187 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "train is 40 miles per hour faster than the cars
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document.write( "Let x and (x+40mph)represent the speed of the car and train respectively
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document.write( "Question states*** Time is the same.  t = D/r
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document.write( "     | Cross Multiplying 
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document.write( "  280x = 140(x+40)
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document.write( "  140x = 5600
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document.write( "     x = 40mph, the average speed of the car's.  train's average speed is 80mph\r
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document.write( "CHECKING our Answer*** 
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document.write( " 140mi/40mph = 280mi/80mph = 3.5 hr \n" );
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