document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=890419>Question 890419</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A river tour bus can travel 10 miles upstream in the same time it takes to travel 15 miles downstream. If the rivers current is 2mph what is the boats average speed in still water?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #538963 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=538963\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A river tour bus can travel 10 miles upstream in the same time it takes to travel 15 miles downstream. If the rivers current is 2mph what is the boats average speed in still water?<BR>\n" );
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document.write( "let x=speed of boat in still water<BR>\n" );
document.write( "x+2=speed of boat downstream<BR>\n" );
document.write( "x-2=speed of boat upstream<BR>\n" );
document.write( "..<BR>\n" );
document.write( "travel time=distance/speed<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15%2F%28x%2B2%29=10%2F%28x-2%29 ALIGN=MIDDLE  ALT=\"15%2F%28x%2B2%29=10%2F%28x-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "15(x-2)=10(x+2)<BR>\n" );
document.write( "15x-30=10x+20<BR>\n" );
document.write( "5x=50<BR>\n" );
document.write( "x=10<BR>\n" );
document.write( "boats average speed in still water=10 mph </SPAN>\n" );
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