document.write( "Question 993560: An airplane flying with the wind can cover a certain distance in a = 4 hours. The return trip against the wind takes b = 6 1/2 hours. How fast is the plane and what is the speed of the wind, if the one-way distance is c = 1040 miles? \n" ); document.write( "

Algebra.Com's Answer #612800 by josgarithmetic(39620) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let w be the wind's speed.
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document.write( "DIRECTION      RATE      TIME      DISTANCE\r\n" );
document.write( "WITHWIND       r+w        a         c\r\n" );
document.write( "AGAINSTW       r-w        b         c\r\n" );
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\n" ); document.write( "\n" ); document.write( "Your system of equations in the UNKNOWNS r and w, is
\n" ); document.write( " $\"system%28%28r%2Bw%29%2Aa=c%2C%28r-w%29%2Ab=c%29\"$ , and hopefully you know what to do with this (and you should solve completely in symbols first). \n" ); document.write( "

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