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)![]() ![]() You can put this solution on YOUR website! 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( " \n" ); document.write( " |