document.write( "Question 449712: From Mexico, the airplane took 2 hr to fly 600 mi against a head wind. The return trip with wind took 1 2/3 hr. Find the speed of the plane in still air. \n" ); document.write( "
Algebra.Com's Answer #313308 by jorel1380(3719)\"\" \"About 
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600 mi/2 hr=300 mph
\n" ); document.write( "600 mi/5/3 hr=360 mph
\n" ); document.write( "300+360/2=330 mph
\n" ); document.write( "The rate of the plane in still air is 330 mph..
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