document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119321>Question 119321</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a water faucet can fill a sink in 6 minutes, whereas the drain can empty it in 4 minutes. if the sing is full, how long will it take to empty if both the faucet and the drain are open? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87401 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=87401\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A water faucet can fill a sink in 6 minutes, whereas the drain can empty it in 4 minutes. if the sing is full, how long will it take to empty if both the faucet and the drain are open?<BR>\n" );
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document.write( "Let t = time for this to occur<BR>\n" );
document.write( "Let the empty sink = 1<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F4 ALIGN=MIDDLE  ALT=\"t%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F6 ALIGN=MIDDLE  ALT=\"t%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
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document.write( "Get rid of the denominators, multiply equation by 12<BR>\n" );
document.write( "12*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F4 ALIGN=MIDDLE  ALT=\"t%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > - 12*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F6 ALIGN=MIDDLE  ALT=\"t%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 12(1)<BR>\n" );
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document.write( "Cancel out the denominators and you have:<BR>\n" );
document.write( "3t - 2t = 12<BR>\n" );
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document.write( "t = 12 min<BR>\n" );
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document.write( "Check in original equaiton:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2F4 ALIGN=MIDDLE  ALT=\"12%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2F6 ALIGN=MIDDLE  ALT=\"12%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > =<BR>\n" );
document.write( " 3 - 2 = 1; confirms our solution of t = 12<BR>\n" );
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document.write( "That was pretty easy, right? </SPAN>\n" );
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