document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=976204>Question 976204</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A jet takes <BR>\n" );
document.write( "6<BR>\n" );
document.write( " hours to travel a distance of <BR>\n" );
document.write( "4860mi<BR>\n" );
document.write( " against the wind. The return trip takes <BR>\n" );
document.write( "5<BR>\n" );
document.write( "hours with the wind. What is the rate of the jet in still air and what is the rate of the wind? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #597853 by </B><A HREF=/tutors/aboutme.mpl?userid=t0hierry><B>t0hierry(194)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=t0hierry><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=t0hierry><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=597853\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> against the wind: speed jet = speed without wind - speed wind<BR>\n" );
document.write( "with the wind speed jet = speed w/o wind + speed wind\r<BR>\n" );
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document.write( "time = distance/speed = d/(s-w) = 6h<BR>\n" );
document.write( "time return - d/(s + w) = 5h\r<BR>\n" );
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document.write( "so 6*(s-w) = 5 (s+w)<BR>\n" );
document.write( "s = 11 w\r<BR>\n" );
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document.write( "so s-w = 10w = d/6 = 4860/6 = 810 which gives \r<BR>\n" );
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document.write( "w = 81 mph<BR>\n" );
document.write( "s= 891 mph </SPAN>\n" );
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