document.write( "Question 1080258: A plane, that can fly an average of 400 mph in still air, makes frequent round trips from city A to city B. When the wind is blowing at an average rate of 20 mph the flying time for the entire round trip is 12 hours. how far is it from city A to city B? \n" ); document.write( "

Algebra.Com's Answer #694474 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "A plane, that can fly an average of 400 mph in still air, makes frequent round trips from city A to city B. When the wind is blowing at an average rate of 20 mph the flying time for the entire round trip is 12 hours. how far is it from city A to city B?
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Let distance from A to B, be D
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document.write( "Time traveled AGAINST wind:  
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document.write( "Time traveled WITH wind: 
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document.write( "We then get the following TIME equation: 
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document.write( "21D + 19D = 95,760 ------- Multiplying by LCD, 7,980
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document.write( "40D = 95,760
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document.write( "D, or distance from A to B =  \n" );
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