document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=926695>Question 926695</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boat is traveling 9 miles downstream in the same time that he travels 3 miles upstream, against the river current. The speed of the river current is 6 miles per hour, what is the speed of the boat traveling in still water, or with no river current.\r<BR>\n" );
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document.write( "Im not sure how to set up the problem, if someone could explain that would be very helpful. not looking for the answer, more so how to set this word problem up.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #562401 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=562401\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = speed of boat in still water<BR>\n" );
document.write( "s = d/t<BR>\n" );
document.write( "---<BR>\n" );
document.write( "downstream:<BR>\n" );
document.write( "x + 6 = 9/t<BR>\n" );
document.write( "t = 9/(x + 6)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "upstream:<BR>\n" );
document.write( "x - 6 = 3/t<BR>\n" );
document.write( "t = 3/(x - 6)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "9/(x + 6) = 3/(x - 6)<BR>\n" );
document.write( "9(x - 6) = 3(x + 6)<BR>\n" );
document.write( "9x - 54 = 3x + 18<BR>\n" );
document.write( "6x = 72<BR>\n" );
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document.write( "answer:<BR>\n" );
document.write( "x = speed of boat in still water = 12 mph<BR>\n" );
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document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
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document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Convert fractions, decimals, and percents:<BR>\n" );
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document.write( "---<BR>\n" );
document.write( "Calculate and graph the linear regression of any data set:<BR>\n" );
document.write( "https://sooeet.com/math/linear-regression.php </SPAN>\n" );
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