document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1116287>Question 1116287</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On a certain&#8203; river, a paddleboat travels 20 miles upstream &#8203;(against the&#8203; current) in the same amount of time it travels 40 miles downstream&#8203; (with the&#8203; current). If the current of the river is 55 miles per &#8203;hour, determine the speed of 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 #731176 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</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=731176\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ? ?   <BR>\n" );
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document.write( " If the current of the river is 55 miles per &#8203;hour, determine the speed of the boat in still<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28%28r-55%29t=20%2C%28r%2B55%29t=40%29 ALIGN=MIDDLE  ALT=\"system%28%28r-55%29t=20%2C%28r%2B55%29t=40%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=20%2F%28r-55%29=40%2F%28r%2B55%29 ALIGN=MIDDLE  ALT=\"20%2F%28r-55%29=40%2F%28r%2B55%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >------simplify and solve this for r.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F%28r-55%29=2%2F%28r%2B55%29 ALIGN=MIDDLE  ALT=\"1%2F%28r-55%29=2%2F%28r%2B55%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=2%28r-55%29=r%2B55 ALIGN=MIDDLE  ALT=\"2%28r-55%29=r%2B55\"   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=2r-110=r%2B55 ALIGN=MIDDLE  ALT=\"2r-110=r%2B55\"   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=165 ALIGN=MIDDLE  ALT=\"r=165\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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