document.write( "Question 1127565: A plane flies into the wind (against the wind current) for 3.5 hours for a distance of 1,260 miles. The return trip with a tailwind (with the wind current) only takes 3 hours. Find the average speed of the plane in still air and the speed of the wind current. \n" ); document.write( "

Algebra.Com's Answer #744033 by MathTherapy(10810) $\"\"$ $\"About$

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\n" ); document.write( "A plane flies into the wind (against the wind current) for 3.5 hours for a distance of 1,260 miles. The return trip with a tailwind (with the wind current) only takes 3 hours. Find the average speed of the plane in still air and the speed of the wind current.
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Let the speed of the plane, in still air, and the speed of the wind, be S and W, respectively
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document.write( "Then we get the following TIME equations: 
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document.write( "2S = 780 ------- Adding eqs (ii) & (i)
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document.write( "S, or speed, in still air = 
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document.write( "W, or windspeed:  \n" );
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