document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=969896>Question 969896</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boat goes downstream 72 miles in 3 hours, and travels upstream 60 miles in 6 hours.  <BR>\n" );
document.write( "What is the rate of the river, and what is the boat in still water? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #854533 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39835)</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=854533\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> speed of the river,  r<BR>\n" );
document.write( "speed of boat by itself, b\r<BR>\n" );
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document.write( "downstream  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72%2F3=24 ALIGN=MIDDLE  ALT=\"72%2F3=24\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "upstream  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60%2F6=10 ALIGN=MIDDLE  ALT=\"60%2F6=10\"   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%28b-r=10%2Cb%2Br=24%29 ALIGN=MIDDLE  ALT=\"system%28b-r=10%2Cb%2Br=24%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If add the equations then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2b=34 ALIGN=MIDDLE  ALT=\"2b=34\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=17 ALIGN=MIDDLE  ALT=\"b=17\"   DISABLED_style= \"max-width:90%; height:auto;\" >------boat speed without current\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=-b%2B24 ALIGN=MIDDLE  ALT=\"r=-b%2B24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=24-17 ALIGN=MIDDLE  ALT=\"r=24-17\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=7 ALIGN=MIDDLE  ALT=\"r=7\"   DISABLED_style= \"max-width:90%; height:auto;\" >----------river current speed </SPAN>\n" );
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