document.write( "Question 578022:
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document.write( "A plane flies at x miles per hour in still air. Flying with a tailwind, its speed is 485 miles per hour. Against the wind, its air speed is only 445 miles per hour. What is the speed of the wind? \n" );
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Algebra.Com's Answer #370465 by dfrazzetto(283) You can put this solution on YOUR website! x+wind = 485 \n" ); document.write( "x-wind = 445 multiply by -1\r \n" ); document.write( "\n" ); document.write( "x+wind =485 \n" ); document.write( "-x+wind = -445 \n" ); document.write( "____________________\r \n" ); document.write( "\n" ); document.write( "2(wind) = 40 \n" ); document.write( "wind = 20 mph\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x=465 mph \n" ); document.write( " |