document.write( "Question 756550: A plane can fly 390 mph in still air. If it can fly 440 miles downwind in the same amount of time it can fly 340 miles upwind, find the velocity of the wind. \n" ); document.write( "
Algebra.Com's Answer #460278 by Alan3354(69443)\"\" \"About 
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A plane can fly 390 mph in still air. If it can fly 440 miles downwind in the same amount of time it can fly 340 miles upwind, find the velocity of the wind.
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\n" ); document.write( "Windspeed is the difference = 50 mi/hr
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