document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=325923>Question 325923</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplane flew 3 hours with a 40 mph head wind. The return trip with a tail wind of the same speed took 2 hours. Find the speed of the plane in still air. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #233298 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=233298\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let s = speed of plane in still air\r<BR>\n" );
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document.write( "Headwind will decrease the plane's speed in still air and tailwind will increase the plane's speed in still air.\r<BR>\n" );
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document.write( "3(s - 40) = 2(s + 40)\r<BR>\n" );
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document.write( "3s - 120 = 2s + 80\r<BR>\n" );
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document.write( "3s - 2s = 80 + 120\r<BR>\n" );
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document.write( "s = 200\r<BR>\n" );
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