document.write( "Question 610690: flying with the wind, a pilot flew 600 miles between two cities in 4 hours. the return trip against the wind took 5 hours. find the rate of the plane in calm air and the rate of the wind. \n" ); document.write( "
Algebra.Com's Answer #384537 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
p + w = 600 / 4\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "p - w = 600 / 5\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "add the equations to find p (w will be eliminated); then substitute back to find w
\n" ); document.write( "
\n" );