document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=310089>Question 310089</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the flow rate for one pipe is 7 times that of another pipe. A swimming pool can be filled in 21 hours using both pipes. Find the time required to fill the pool using only the pipe with the lower flow rate<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 #221793 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=221793\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the flow rate for one pipe is 7 times that of another pipe. <BR>\n" );
document.write( "A swimming pool can be filled in 21 hours using both pipes.<BR>\n" );
document.write( " Find the time required to fill the pool using only the pipe with the lower flow rate<BR>\n" );
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document.write( "Let x = time to fill the pool using smaller pipe (lower flow rate)<BR>\n" );
document.write( "then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F7 ALIGN=MIDDLE  ALT=\"1%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" >x = time to fill the pool using the larger pipe<BR>\n" );
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document.write( "Let the completed job = 1; (a full pool)<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21%2F%28x%2F7%29 ALIGN=MIDDLE  ALT=\"21%2F%28x%2F7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21%2Fx ALIGN=MIDDLE  ALT=\"21%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( ":<BR>\n" );
document.write( "invert the dividing fraction and mult<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2821%2A%287%2Fx%29%29 ALIGN=MIDDLE  ALT=\"%2821%2A%287%2Fx%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21%2Fx ALIGN=MIDDLE  ALT=\"21%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=147%2Fx ALIGN=MIDDLE  ALT=\"147%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21%2Fx ALIGN=MIDDLE  ALT=\"21%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "Multiply by x<BR>\n" );
document.write( "147 + 21 = x<BR>\n" );
document.write( "168 = x<BR>\n" );
document.write( "Smaller pipe requires 168 hrs to fill the pool<BR>\n" );
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document.write( ":<BR>\n" );
document.write( "Check this solution<BR>\n" );
document.write( "Larger pipe: 168/7 = 24 hrs by itself<BR>\n" );
document.write( "then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21%2F24 ALIGN=MIDDLE  ALT=\"21%2F24\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21%2F168 ALIGN=MIDDLE  ALT=\"21%2F168\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <BR>\n" );
document.write( ".875 + .125 = 1 </SPAN>\n" );
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