document.write( "Question 1065446: A plane flies 1200 miles in 4.8 hours against the wind. Returns 1200 miles with the wind in 4 hours. What is the wind speed. What is the plane speed.\r
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document.write( "1200=(p-w)4.8
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document.write( "1200=(p+w)4\r
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Algebra.Com's Answer #680592 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A plane flies 1200 miles in 4.8 hours against the wind. Returns 1200 miles with the wind in 4 hours. What is the wind speed. What is the plane speed.\r \n" ); document.write( "\n" ); document.write( "d=rt\r \n" ); document.write( "\n" ); document.write( "1200=(p-w)4.8 \n" ); document.write( "1200=(p+w)4 \n" ); document.write( "============= \n" ); document.write( "And? \n" ); document.write( "(p-w)4.8 = (p+w)4 \n" ); document.write( "Now what? \n" ); document.write( "---------------- \n" ); document.write( "The plane's airspeed is the average of the groundspeeds upwind and downwind. \n" ); document.write( "---------- \n" ); document.write( "1200/4.8 upwind \n" ); document.write( "1200/4 downwind \n" ); document.write( "================ \n" ); document.write( "Windspeed is the difference between airspeed and groundspeed. \n" ); document.write( " |