document.write( "Question 957352: A plane has a cruising speed of
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Algebra.Com's Answer #584995 by lwsshak3(11628)\"\" \"About 
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A plane has a cruising speed of 200 miles per hour when there is no wind. At this speed, the plane flew 500miles with the wind in the same amount of time it flew 300
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\n" ); document.write( "let c=speed of wind
\n" ); document.write( "200+c=speed of plane with the wind
\n" ); document.write( "200-c=speed of plane against the wind
\n" ); document.write( "travel time=distance/speed (same for both directions)
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\n" ); document.write( "\"500%2F%28200%2Bc%29=300%2F%28200-c%29\"
\n" ); document.write( "500(200-c)=300(200+c)
\n" ); document.write( "100000-500c=60000+300c
\n" ); document.write( "800c=40000
\n" ); document.write( "c=50
\n" ); document.write( "speed of wind=50 mph
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