document.write( "Question 539818: With a head wind, a plane traveled 1200 miles in 4 hours. With the same wind as a tail wind, the return trip took 3 hours. Find the plane's air speed and the wind speed. \n" ); document.write( "
Algebra.Com's Answer #353563 by richwmiller(17219)\"\" \"About 
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r*t=d
\n" ); document.write( "(r-w)*4=1200
\n" ); document.write( "r-w=300\r
\n" ); document.write( "\n" ); document.write( "(r+w)*3=1200
\n" ); document.write( "r+w=400
\n" ); document.write( "r-w=300
\n" ); document.write( "add
\n" ); document.write( "2r=700
\n" ); document.write( "r=350
\n" ); document.write( "350-w=300
\n" ); document.write( "w=50
\n" ); document.write( "
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