document.write( "Question 994700: An airplane travels 2310 miles in 3.5 hours with the aid of a tail wind. It takes 4 hours for the return trip, flying against the same wind. Find the speed of the airplane in the still wind, and the speed of the wind. \n" ); document.write( "
Algebra.Com's Answer #613712 by Alan3354(69443)\"\" \"About 
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Find the 2 groundspeeds, upwind and downwind.
\n" ); document.write( "The plane's airspeed is the average of the 2.
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\n" ); document.write( "Windspeed = difference between airspeed and groundspeed.
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