document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=163464>Question 163464</A>: <I><SPAN STYLE=\"word-break: break-all;\"> With a head wind, a plane traveled 840 miles northward in 2 hours.  With the same wind as a tail wind, the return trip southward took 1 hour and 45 minutes.  Find the plane's air speed and wind speed. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #120475 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=120475\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 840/2=420 mph.<BR>\n" );
document.write( "840/1.75=480 mph.<BR>\n" );
document.write( "(480-420)/2=60/2=30 mph. is the speed of the wind.<BR>\n" );
document.write( "420+30=450 mph. speed of the plane<BR>\n" );
document.write( "480-30=450 mph. ditto. </SPAN>\n" );
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