document.write( "Question 448583: at maximum speed, an airplane travels 2100 miles against the wind in 6 hours. Flying with the wind, the plane can travel the same distance in 4 hours. Let x be the maximum speed of the plane and y be the speed of the wind. What is the speed of the plane with no wind? \n" ); document.write( "

Algebra.Com's Answer #308665 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "Let x be the maximum speed of the plane and y be the speed of the wind
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document.write( "Question states*** Note: D = r*t  or r = D/t
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document.write( "x +y = 525mph   |2100mi/4hr = 525mph
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document.write( "x -y = 350mph   |2100mi/6hr = 350mph
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document.write( "  2x = 875
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document.write( "   x = 437.5mph, speed of plane.  Wind speed is 87.5 \n" );
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