document.write( "Question 1100460: at what air speed should an airplane head due west in order to follow a course south 70 degrees 15 minuets west if a 20.5km/h wind is blowing from due north \n" ); document.write( "
Algebra.Com's Answer #714945 by Alan3354(69443)\"\" \"About 
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airplanes go as fast as they can.
\n" ); document.write( "They don't adjust their airspeed to make a given ground track.
\n" ); document.write( "They adjust their heading.
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