document.write( "Question 540886: A jet plane flying with the wind flew 2600 km in 5 hours. Flying against the wind, the plane could fly only 2200 km in the same amount of time. What is the;
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document.write( "a) The rate of the plane in calm air
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document.write( "b) The rate of the wind \n" );
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Algebra.Com's Answer #353921 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! r = d / t\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "p + w = 2600 / 5 ___ p + w = 520\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "p - w = 2200 / 5 ___ p - w = 440\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "adding the equations will eliminate w \n" ); document.write( "___ solve for p, then substitute back to find w \n" ); document.write( " |