document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=201109>Question 201109</A>: <I><SPAN STYLE=\"word-break: break-all;\"> TAB2 NEEDS HELP...\r<BR>\n" );
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document.write( "Flying against the jetstream, a jet travels 2800 km  in 5 hours. Flying with the jetstream, the same jet travels 2760 in 3 hours. What is the speed of the jet in still air, and what is the speed of the jetstream? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #151333 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=151333\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s ALIGN=MIDDLE  ALT=\"s\"   DISABLED_style= \"max-width:90%; height:auto;\" > = speed in still air<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j ALIGN=MIDDLE  ALT=\"j\"   DISABLED_style= \"max-width:90%; height:auto;\" > = speed of jetstream<BR>\n" );
document.write( "Flying with jetstream, plane's speed is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+%2B+j ALIGN=MIDDLE  ALT=\"s+%2B+j\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Flying against jetstream, plane's speed is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+-+j ALIGN=MIDDLE  ALT=\"s+-+j\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I can say:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2800+=+%28s+-+j%29%2A5 ALIGN=MIDDLE  ALT=\"2800+=+%28s+-+j%29%2A5\"   DISABLED_style= \"max-width:90%; height:auto;\" > km<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2760+=+%28s+%2B+j%29%2A3 ALIGN=MIDDLE  ALT=\"2760+=+%28s+%2B+j%29%2A3\"   DISABLED_style= \"max-width:90%; height:auto;\" > km<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2800+=+5s+-+5j ALIGN=MIDDLE  ALT=\"2800+=+5s+-+5j\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2760+=+3s+%2B+3j ALIGN=MIDDLE  ALT=\"2760+=+3s+%2B+3j\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides of the 1st equation by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3 ALIGN=MIDDLE  ALT=\"3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and both sides of the 2nd by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5 ALIGN=MIDDLE  ALT=\"5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8400+=+15s+-+15j ALIGN=MIDDLE  ALT=\"8400+=+15s+-+15j\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13800+=+15s+%2B+15j ALIGN=MIDDLE  ALT=\"13800+=+15s+%2B+15j\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Add the equations<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=22200+=+30s ALIGN=MIDDLE  ALT=\"22200+=+30s\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s+=+740 ALIGN=MIDDLE  ALT=\"s+=+740\"   DISABLED_style= \"max-width:90%; height:auto;\" > km/hr<BR>\n" );
document.write( "and, since<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2760+=+%28s+%2B+j%29%2A3 ALIGN=MIDDLE  ALT=\"2760+=+%28s+%2B+j%29%2A3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2760+=+%28740+%2B+j%29%2A3 ALIGN=MIDDLE  ALT=\"2760+=+%28740+%2B+j%29%2A3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2760+=+2220+%2B+3j ALIGN=MIDDLE  ALT=\"2760+=+2220+%2B+3j\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3j+=+540 ALIGN=MIDDLE  ALT=\"3j+=+540\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j+=+180 ALIGN=MIDDLE  ALT=\"j+=+180\"   DISABLED_style= \"max-width:90%; height:auto;\" > km/hr\r<BR>\n" );
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document.write( " </SPAN>\n" );
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