document.write( "Question 1206064: With a tailwind, an aircraft can fly 408 miles in 3 hours.
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Algebra.Com's Answer #843258 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
With a tailwind, an aircraft can fly 408 miles in 3 hours. Against
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document.write( "             A = average airspeed of plane\r\n" );
document.write( "             w = speed of wind\r\n" );
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document.write( "             | DISTANCE |   RATE  |  TIME | \r\n" );
document.write( "with wind    |   408    |   A+w   |   3   |     \r\n" );
document.write( "against wind |   408    |   A-w   |   4   |\r\n" );
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document.write( "             \r\n" );
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document.write( "             \"system%28408=3A%2B3w%2C408=4A-4w%29\"\r\n" );
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document.write( "         Divide 1st equation by 3, 2nd equation by 4:\r\n" );
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document.write( "             \"system%28136=A%2Bw%2C102=A-w%29\"\r\n" );
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document.write( "        Add the two equations:\r\n" );
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document.write( "             \"238=2A\"\r\n" );
document.write( "             \"119=A\"\r\n" );
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document.write( "         Air speed = 119 mph\r\n" );
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document.write( "         Subtract the two equations:\r\n" );
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document.write( "             \"34=2w\"\r\n" );
document.write( "             \"17=w\"\r\n" );
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document.write( "         Wind speed = 17 mph\r\n" );
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document.write( "Edwin
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