document.write( "Question 563848: if a plane travels 490 mph with the wind and 410 mph against the wind what is the speed of the plane in still air?
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document.write( "How do you solve this?
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document.write( "Thank you! \n" );
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Algebra.Com's Answer #365090 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! if a plane travels 490 mph with the wind and 410 mph against the wind what is the speed of the plane in still air? \n" ); document.write( "How do you solve this? \n" ); document.write( "----------------- \n" ); document.write( "The plane's airspeed is the average, 450 mi/hr \n" ); document.write( "--------- \n" ); document.write( "a + w = 490 \n" ); document.write( "a - w = 410 \n" ); document.write( "--> a = 450 \n" ); document.write( " \n" ); document.write( " |