document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=90558>Question 90558</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please solve,wordproblemsare so difficult. :) Thank you!\r<BR>\n" );
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document.write( "The trip upstream from A to B takes 4.5 hrs, and the trip back downstream takes 2 hrs. Its 18 miles from A toB. What is the speed of the current and what is the speed of the boat in still water?\r<BR>\n" );
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document.write( "Thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #65762 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=65762\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let b=boat, c=current ... speed upstream=18/4.5=4 ... speed downstream=18/2=9\r<BR>\n" );
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document.write( "b+c=9 ... b-c=4 ... b+c+(b-c)=9+4 ... 2b=13 ... b=6.5 ... c=9-b ... c=2.5 </SPAN>\n" );
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