document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=458867>Question 458867</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes Rob 10 hours to clean an attic. Sam can clean the same attic in 11 hours. How long would it take them if they work together?\r<BR>\n" );
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document.write( "Thank You!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #314838 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=314838\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It takes Rob 10 hours to clean an attic.<BR>\n" );
document.write( " Sam can clean the same attic in 11 hours. <BR>\n" );
document.write( "How long would it take them if they work together?<BR>\n" );
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document.write( "Let t = time if they work together<BR>\n" );
document.write( "Let the completed job = 1 (a clean attic)<BR>\n" );
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document.write( "A typical shared work equation <BR>\n" );
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document.write( "<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;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F11 ALIGN=MIDDLE  ALT=\"t%2F11\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "multiply by a common denominator, 110<BR>\n" );
document.write( "110*<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;\" > + 110*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F11 ALIGN=MIDDLE  ALT=\"t%2F11\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 110(1)<BR>\n" );
document.write( "Cancel the denominators<BR>\n" );
document.write( "11t + 10t = 110<BR>\n" );
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document.write( "21t = 110<BR>\n" );
document.write( " t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=110%2F21 ALIGN=MIDDLE  ALT=\"110%2F21\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " t = 5.238 hrs or about 5 hrs 14.3 min </SPAN>\n" );
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