document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=973894>Question 973894</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Suppose you're flying in ultra light aircraft you fly to a nearby town 18 miles away with a tailwind the trip takes 1/3 hour.   Your return flight with a headwind takes 3/5 hour   Find the speed of the aircraft in the speed 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 #595941 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39626)</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=595941\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a very common exercise question in uniform travel rates and deserves a generalized solution method.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "RT=D, for rate, time, distance.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "This table implies assigned variables.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "______________speed_____________time___________distance<BR>\n" );
document.write( "WITH__________r+w_________________v_______________d<BR>\n" );
document.write( "AGAINST_______r-w_________________u_______________d\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v%3Cu ALIGN=MIDDLE  ALT=\"v%3Cu\"   DISABLED_style= \"max-width:90%; height:auto;\" > according to the effect of the wind.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28%28r%2Bw%29v=d%2C%28r-w%29u=d%29 ALIGN=MIDDLE  ALT=\"system%28%28r%2Bw%29v=d%2C%28r-w%29u=d%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is a system of two equations with the two unknown variables, r and w.  A bit of arithmetic and substitutions will make the system solvable. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );