document.write( "Question 1079702: flying against the wind a jet travels 4160 miles in 8 hours. flying with the wind, the same jet travels 3920 miles in 4 hours. what is the rate of the jet in still air and what is the rate of the wind \n" ); document.write( "
Algebra.Com's Answer #693918 by Boreal(15235)\"\" \"About 
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mph against the wind is 4160/8=520 mph
\n" ); document.write( "mph with the wind is 3920/4=980 mph
\n" ); document.write( "x=plane speed
\n" ); document.write( "y=wind speed
\n" ); document.write( "x+y=980
\n" ); document.write( "x-y=520
\n" ); document.write( "2x=1500
\n" ); document.write( "x=750 mph, plane's speed
\n" ); document.write( "wind is 230 mph.
\n" ); document.write( "
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