document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=428476>Question 428476</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Flying from Tokyo to London is approximately 6175 miles. On the way to London from Tokyo(against the wind) the flight took 13 hours. the return flight (with the wind) took 9.88 hours. Find the speed of the plane in still air and the speed of the wind current. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #853244 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39701)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=853244\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r, speed of plane in still air<BR>\n" );
document.write( "w, speed of wind\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28%28r-w%29%2A13=6175%2C%28r%2Bw%29%2A9.88=6175%29 ALIGN=MIDDLE  ALT=\"system%28%28r-w%29%2A13=6175%2C%28r%2Bw%29%2A9.88=6175%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28r-w=475%2C+r%2Bw=625%29 ALIGN=MIDDLE  ALT=\"system%28r-w=475%2C+r%2Bw=625%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If add the equations term by term<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2r=1100 ALIGN=MIDDLE  ALT=\"2r=1100\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=550 ALIGN=MIDDLE  ALT=\"r=550\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and you can figure out w. </SPAN>\n" );
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