document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=852415>Question 852415</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help\r<BR>\n" );
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document.write( "A winery has a vat with 2 pipes leading to it. The inlet pipe can fill the vat in 7 hours while the outlet pipe can empty in 10 hours.\r<BR>\n" );
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document.write( "How long will it take to fill the vat if both pipes are left open?\r<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 #513537 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=513537\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A winery has a vat with 2 pipes leading to it.<BR>\n" );
document.write( " The inlet pipe can fill the vat in 7 hours while the outlet pipe can empty in 10 hours.<BR>\n" );
document.write( "How long will it take to fill the vat if both pipes are left open?<BR>\n" );
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document.write( "let t = time to fill the vat when both valves are open<BR>\n" );
document.write( "let the completed job = 1 (a full vat)<BR>\n" );
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document.write( "fill is plus, empty is minus<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F7 ALIGN=MIDDLE  ALT=\"t%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F10 ALIGN=MIDDLE  ALT=\"t%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "multiply by 70, cancel the denominators and you have<BR>\n" );
document.write( "10t - 7t = 70<BR>\n" );
document.write( "3t = 70<BR>\n" );
document.write( "t = 70/3<BR>\n" );
document.write( "t = 23<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs to fill the vat<BR>\n" );
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