document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=520167>Question 520167</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is a Rational Word Problem but i think it still goes under this category. The word problem is: My dog, Pooba, likes to swim in the river. Pooba can swim 6 miles per hour in still water. He can swim 6 miles upstream in the same time it takes to swim 18 miles downstream. What is the speed of the river's current? Please help me. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #345953 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=345953\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "Distance equals rate times time, so you can also say that time equals distance divided by rate.  Since the upstream trip is against the current, the upstream rate is the still water rate MINUS the current rate, and the downstream rate is the still water rate PLUS the current rate.  Let <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large r_c\"> represent the rate of the current and then the following two expressions are equal because the time for the upstream trip is the same as the time for the downstream trip.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{6}{6\ -\ r_c}\ =\ \frac{18}{6\ +\ r_c}\">\r<BR>\n" );
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document.write( "Cross multiply and then solve for <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large r_c\">.  Doesn't matter what the dog's name is either; the answer is the same.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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