document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=609756>Question 609756</A>: <I><SPAN STYLE=\"word-break: break-all;\"> at an aquarium two different pipes can be used to fill one of the large tanks. Pipe A can fill the tank in 7 hours. Pipe B can fill tank in 9 hours. The aquariums manager would like to fill the tank in less than 4 ours. Is it possible to do this by using both pipes at the same time ? explain ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #384120 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=384120\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At an aquarium two different pipes can be used to fill one of the large tanks.<BR>\n" );
document.write( " Pipe A can fill the tank in 7 hours. Pipe B can fill tank in 9 hours.<BR>\n" );
document.write( " The aquariums manager would like to fill the tank in less than 4 ours.<BR>\n" );
document.write( " Is it possible to do this by using both pipes at the same time?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "See how long (t) it would take with both pipes filling the tank<BR>\n" );
document.write( "Let the full tank = 1<BR>\n" );
document.write( ":<BR>\n" );
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%2F9 ALIGN=MIDDLE  ALT=\"t%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "multiply by 63, results<BR>\n" );
document.write( "9t + 7t = 63<BR>\n" );
document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=63%2F16 ALIGN=MIDDLE  ALT=\"63%2F16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "t = 3.9375 hrs. the answer is yes.<BR>\n" );
document.write( " </SPAN>\n" );
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