document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=846838>Question 846838</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A pool can be filled by one pipe in 9 hours and by a second pipe in 7 hours. How long will it take using both pipes to fill the pool? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #509939 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=509939\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The fill rate of both pipes together is the sum of their individual fill rates.  The rates must be used as \"pool-fulls per hour\".  \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%281%2F9%2B1%2F7%29 ALIGN=MIDDLE  ALT=\"highlight%281%2F9%2B1%2F7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and this merely needs to be computed. </SPAN>\n" );
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