document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=155458>Question 155458</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Flying against the jetstream, a jet travels 3700 km  in 5 hours. Flying with the jetstream, the same jet travels 9280 in 8 hours. What is the speed of the jet in still air, and what is the speed of the jetstream? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #114507 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=114507\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3700/5=s-j<BR>\n" );
document.write( "9280/8=s+j<BR>\n" );
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document.write( "3700/5+9280/8=2s<BR>\n" );
document.write( "(8*3700+5*9280)/40=2s<BR>\n" );
document.write( "40*2s=29,600+46,400<BR>\n" );
document.write( "80s=76,000<BR>\n" );
document.write( "s=76,000/80<BR>\n" );
document.write( "s=950 km/h is the speed of the jet.<BR>\n" );
document.write( "3700/5=950-j<BR>\n" );
document.write( "740-950=-j<BR>\n" );
document.write( "j=210 speed of the jet stream.<BR>\n" );
document.write( "proof:<BR>\n" );
document.write( "9280/8=950+210<BR>\n" );
document.write( "1160=1160 </SPAN>\n" );
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