document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=951005>Question 951005</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An inlet pipe on a swimming pool can be used to fill the pool in 10 hours. The drain pipe can be used to empty the pool in 30 hours. If the pool is 15 filled and then the inlet pipe and drain pipe are opened, how long from that time will it take 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 #580712 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</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=580712\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> PIPE_______________RATES<BR>\n" );
document.write( "Inlet_______________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F10 ALIGN=MIDDLE  ALT=\"1%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Outlet_____________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1%2F30 ALIGN=MIDDLE  ALT=\"-1%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Combined__________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F10-1%2F30=1%2F15 ALIGN=MIDDLE  ALT=\"1%2F10-1%2F30=1%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "\"If the pool is 15 filled and then the...\"\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Fifteen what?  This description need to be more specific or nothing can be solved.<BR>\n" );
document.write( "Is this the numerator of a fraction?  Fraction of what?  Is this percent of the pool?<BR>\n" );
document.write( "Is it a specific volume  (not likely)?  Is this a time quantity?  If time, then is<BR>\n" );
document.write( "this minutes or hours?\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Here is a guess the piece of information is \"15 minutes\".\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "If fill pipe was open for 15 minutes, this is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F4 ALIGN=MIDDLE  ALT=\"1%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > hour, and you can ask what is t in hour<BR>\n" );
document.write( "to fill the pool after both pipes became open.<BR>\n" );
document.write( "-<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F10%29%2A%281%2F4%29 ALIGN=MIDDLE  ALT=\"%281%2F10%29%2A%281%2F4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, amount of pool filled already<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28%281%2F15%29%2At=1-%281%2F10%29%281%2F4%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28%281%2F15%29%2At=1-%281%2F10%29%281%2F4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, amount still to be filled<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Solve for t.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );