document.write( "Question 384004: If a plane can travel 490 miles per hour with the wind and 410 miles per hour against the wind, find the speed of the plane in still air.
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document.write( "What is the speed of the plane in still air? _____ mph \n" );
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Algebra.Com's Answer #271810 by mananth(16946)![]() ![]() You can put this solution on YOUR website! What is the speed of the plane in still air? _____ mph \n" ); document.write( "490+410=900 \n" ); document.write( "900/2 = 450 mph \n" ); document.write( "... \n" ); document.write( " \n" ); document.write( " |