document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=697574>Question 697574</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 45 minutes. Find the plane's air speed and the wind speed.\r<BR>\n" );
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document.write( "Help please? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #430102 by </B><A HREF=/tutors/aboutme.mpl?userid=lynnlo><B>lynnlo(4176)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lynnlo><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=430102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 840/2=420mph against the wind<BR>\n" );
document.write( "840/1.75=480mph with a head wind<BR>\n" );
document.write( "(480-420)/2<BR>\n" );
document.write( "60/2=30mile head/tail wind<BR>\n" );
document.write( "proof<BR>\n" );
document.write( "420+30=450-30<BR>\n" );
document.write( "450============plane <BR>\n" );
document.write( "30miles wind speed </SPAN>\n" );
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