document.write( "Question 1067961: a plane travels at 900km/h when there's no wind. The straight line distance between Johannesburg and George is 1000km. With wind blowing the plane takes 2 and a 1/4 hours to do a return flight from Johannesburg to George. On the way to George the wind slows down the plane by X km/h and the same wind speeds the plane up by X km/h on the return trip.
\n" ); document.write( "Calculate the wind speed X. \n" ); document.write( "

Algebra.Com's Answer #683145 by josgarithmetic(39631) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "               SPEED        TIME      DISTANCE\r\n" );
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document.write( "J to G          900-x        t          1000\r\n" );
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document.write( "G to J          900+x              1000\r\n" );
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\n" ); document.write( "\n" ); document.write( " $\"system%28%28900-x%29t=1000%2C%28900%2Bx%29%282%261%2F4%29=1000%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "You only need the return trip, second equation. The J to G equation is not necessary. \n" ); document.write( "

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