document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=697418>Question 697418</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A river flows at a speed of five miles per hour. A steamboat went upstream for five hours and stopped at a point 20 miles from where it started. What is the speed of the steamboat in still waters?\r<BR>\n" );
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document.write( "20/(x+5)+20(x-5)=5<BR>\n" );
document.write( "20(x+5)+20(x-5)=5x^2-125<BR>\n" );
document.write( "40x=5x^2-125<BR>\n" );
document.write( "8x=x^2-25<BR>\n" );
document.write( "x^2-8x-25<BR>\n" );
document.write( "After that, I don't know what to do? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #430008 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=430008\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A river flows at a speed of five miles per hour.<BR>\n" );
document.write( " A steamboat went upstream for five hours and stopped at a point 20 miles from where it started.<BR>\n" );
document.write( " What is the speed of the steamboat in still waters? <BR>\n" );
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document.write( "You don't need a quadratic equation to solve this<BR>\n" );
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document.write( "Let x = speed in still water<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(x-5) = effective speed going upstream<BR>\n" );
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document.write( "Write a speed equation; speed = dist/time<BR>\n" );
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document.write( "x - 5 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2F5 ALIGN=MIDDLE  ALT=\"20%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x - 5 = 4<BR>\n" );
document.write( "x = 4 + 5<BR>\n" );
document.write( "x = 9 mph speed in still water </SPAN>\n" );
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