document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=938248>Question 938248</A>: <I><SPAN STYLE=\"word-break: break-all;\"> While canoeing on a river, your paddling speed is twice the river's current. You travel 3 miles downstream and then 3 miles upstream to get back to where you started. [ Write a rule for T(s), the function that gives your total trip time (in hours) as a function of the current's speed s (in miles per hour). The rule should involve a sum of two rational expressions. Carry out the addition to simplify the expression as much as possible. ] </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #571542 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=571542\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2s+%2B+s+ ALIGN=MIDDLE  ALT=\"+2s+%2B+s+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = speed going downstream<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2s+-+s+ ALIGN=MIDDLE  ALT=\"+2s+-+s+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = speed going upstream<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Going downstream:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3+=+%28+2s+%2B+s+%29%2At%5B1%5D+ ALIGN=MIDDLE  ALT=\"+3+=+%28+2s+%2B+s+%29%2At%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Going upstream:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3+=+%28+2s+-+s+%29%2At%5B2%5D+ ALIGN=MIDDLE  ALT=\"+3+=+%28+2s+-+s+%29%2At%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3+=+3s%2At%5B1%5D+ ALIGN=MIDDLE  ALT=\"+3+=+3s%2At%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3+=+s%2At%5B2%5D+ ALIGN=MIDDLE  ALT=\"+3+=+s%2At%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+=+1%2Fs+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+=+1%2Fs+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B2%5D+=+3%2Fs+ ALIGN=MIDDLE  ALT=\"+t%5B2%5D+=+3%2Fs+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+%2B+t%5B2%5D+=+1%2Fs+%2B+3%2Fs+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+%2B+t%5B2%5D+=+1%2Fs+%2B+3%2Fs+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+T%28s%29+=+1%2Fs+%2B+3%2Fs+ ALIGN=MIDDLE  ALT=\"+T%28s%29+=+1%2Fs+%2B+3%2Fs+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+T%28s%29+=+4%2Fs+ ALIGN=MIDDLE  ALT=\"+T%28s%29+=+4%2Fs+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );