document.write( "Question 364555: A helicopter flew 180 miles 1.5 hours with a tail wind. The return trip took 2 hours with a head wind. What was the speed of the helicopter in still air? What was the speed of the wind? \n" ); document.write( "

Algebra.Com's Answer #259965 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi, 
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document.write( "*Note: distance= rate * time Or rate = distance/time
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document.write( "rate with the wind = 180/1.5 = 120mph
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document.write( "rate against the wind = 180/2 = 90mph\r
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document.write( "s + w = 120mph
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document.write( "s - w = 90mph
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document.write( "2s = 210mph
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document.write( "s = 105mph, the speed of the helicopter
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document.write( "wind = 15mph    \n" );
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