document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=253210>Question 253210</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Another word problem!\r<BR>\n" );
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document.write( "A six passenger plan cruises at 180 mph in calm air.  If the plane flies 7 miles with the wind in the same amount of time as it flies 5 miles against the wind, then what is the 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 #185454 by </B><A HREF=/tutors/aboutme.mpl?userid=Greenfinch><B>Greenfinch(383)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Greenfinch><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/cgi-bin/show-face.mpl?user=Greenfinch><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=185454\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In a unit of time T<BR>\n" );
document.write( "T(180 +w) = 7 and T(180 - w) = 5<BR>\n" );
document.write( "so 7/(180 +w) = 5/(180 - w<BR>\n" );
document.write( "rearranging 5 x(180 + w) = 7 x(180 - w)<BR>\n" );
document.write( "900 + 5x = 1260 - 7w<BR>\n" );
document.write( "12w = 360<BR>\n" );
document.write( "w = 30 </SPAN>\n" );
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