document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=571472>Question 571472</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A swimming pool can be filled up by pipes A and B in 3 hours and 35 minuted. If pipe A can fill the pool in 6 1/2 hours, how long can pipe B fill it alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #368126 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=368126\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A swimming pool can be filled up by pipes A and B in 3 hours and 35 minutes.<BR>\n" );
document.write( " If pipe A can fill the pool in 6 1/2 hours, how long can pipe B fill it alone?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "We can do this in minutes, avoid those annoying fractions, then convert the answer back to hrs and min.<BR>\n" );
document.write( "3(60) + 35 = 215 min<BR>\n" );
document.write( "6(60) + 30 = 390 min<BR>\n" );
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document.write( "Let B = time for pipe B to fill it alone<BR>\n" );
document.write( "Let the completed job = 1; (a full pool)<BR>\n" );
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document.write( "A typical shared work equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=215%2F390 ALIGN=MIDDLE  ALT=\"215%2F390\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=215%2FB ALIGN=MIDDLE  ALT=\"215%2FB\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "multiply by 390B<BR>\n" );
document.write( "390B*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=215%2F390 ALIGN=MIDDLE  ALT=\"215%2F390\"   DISABLED_style= \"max-width:90%; height:auto;\" > + 390B*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=215%2FB ALIGN=MIDDLE  ALT=\"215%2FB\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 390B<BR>\n" );
document.write( "cancel the denominators and you have<BR>\n" );
document.write( "215B + 390(215) = 390B<BR>\n" );
document.write( "83850 = 390B - 215B<BR>\n" );
document.write( "83850 = 175B<BR>\n" );
document.write( "B = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=83850%2F175 ALIGN=MIDDLE  ALT=\"83850%2F175\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "B = 479.143 minutes<BR>\n" );
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document.write( "Convert to hrs and min, divide by 60; mult the decimal portion times 60<BR>\n" );
document.write( "7 + .986(60) = 7 hrs 59 minutes for B to the job<BR>\n" );
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