document.write( "Question 894381: Flying against the wind, an airplane travels 7380km in 9 hours. Flying with the wind, the same plane travels 6300km in 5 hours. What is the rate of the plane in still air and what is the rate of the wind? \n" ); document.write( "
Algebra.Com's Answer #542008 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.
\n" ); document.write( "Windspeed is the difference between airspeed and groundspeed.
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\n" ); document.write( "The \"rate of the plane in still air\" is not used by anyone that flies.
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