document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=960322>Question 960322</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Trevon paddled 27 miles downstream in his boat.the speed of the water was 3 miles per hour. Mark paddled 10 miles upstream in his boat. The speed of the water current was 2 miles per hour. The total trip took 11 hours and 20 minutes.  About how much time did the first part of the trip take? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #586875 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=586875\">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=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = Trevor's paddling speed in still water<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = Mark's paddling speed in still water<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "Trevor's equation:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+27+=+%28+a+%2B+3+%29%2At%5B1%5D+ ALIGN=MIDDLE  ALT=\"+27+=+%28+a+%2B+3+%29%2At%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Mark's equation:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10+=+%28+b+-+2+%29%2At%5B2%5D+ ALIGN=MIDDLE  ALT=\"+10+=+%28+b+-+2+%29%2At%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+%2B+t%5B2%5D+=+11.333+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+%2B+t%5B2%5D+=+11.333+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "This can't be solved unless they both<BR>\n" );
document.write( "paddle at the same speed -I'll have to<BR>\n" );
document.write( "assume that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+b+ ALIGN=MIDDLE  ALT=\"+a+=+b+\"   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+=+27+%2F+%28%28+a+%2B+3+%29%29+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+=+27+%2F+%28%28+a+%2B+3+%29%29+\"   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+=+10+%2F+%28%28+a+-+2+%29%29+ ALIGN=MIDDLE  ALT=\"+t%5B2%5D+=+10+%2F+%28%28+a+-+2+%29%29+\"   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=+27+%2F+%28%28+a+%2B+3+%29%29+%2B+10+%2F+%28%28+a+-+2+%29%29+=+11.333+ ALIGN=MIDDLE  ALT=\"+27+%2F+%28%28+a+%2B+3+%29%29+%2B+10+%2F+%28%28+a+-+2+%29%29+=+11.333+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+a+%2B+3+%29%2A%28+a+-+2+%29+ ALIGN=MIDDLE  ALT=\"+%28+a+%2B+3+%29%2A%28+a+-+2+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+27%2A%28+a+-+2+%29+%2B+10%2A%28+a+%2B+3+%29+=+%28+34%2F3+%29%2A%28+a+%2B+3+%29%2A%28+a+-+2+%29+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+27a+-+54+%2B+10a+%2B+30+=+%28+34%2F3+%29%2A%28+a%5E2+%2B+2+-+6+%29+ ALIGN=MIDDLE  ALT=\"+27a+-+54+%2B+10a+%2B+30+=+%28+34%2F3+%29%2A%28+a%5E2+%2B+2+-+6+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "You can finish: solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );