document.write( "Question 903423: A jet plane flying with the wind went 1820 mi in 4 h. Against the wind, the plane could only fly 1560 mi in the same amount of time. Find the rate of the plane in calm air and the rate of the wind.
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Algebra.Com's Answer #547997 by tmwilliamlin168(27)![]() ![]() ![]() You can put this solution on YOUR website! x=jet speed \n" ); document.write( "y=wind speed \n" ); document.write( "x+y=1820 \n" ); document.write( "x-y=1560 \n" ); document.write( "y=130 \n" ); document.write( "x=1690 \n" ); document.write( "rate of plane: 1690 in 4h. \n" ); document.write( "rate of wind: 130 in 4h \n" ); document.write( " |