document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=149079>Question 149079</A>: <I><SPAN STYLE=\"word-break: break-all;\"> installing a dishwasher.  A plumber can install a dishwasher in 50 minutes.  If the plumber brings his apprentice, the job takes 40 minutes.  How long would it take the apprentice working alone to install the dishwasher? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #109367 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=109367\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the plumber can do the installation in 50 minutes, then he can do <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F50 ALIGN=MIDDLE  ALT=\"1%2F50\"   DISABLED_style= \"max-width:90%; height:auto;\" > of the installation in 1 minute.  Likewise, working together, the plumber and his apprentice can do <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F40 ALIGN=MIDDLE  ALT=\"1%2F40\"   DISABLED_style= \"max-width:90%; height:auto;\" > of the job in a minute.  We need to find out how many minutes it takes the apprentice by himself and we'll call that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so the apprentice by himself can do <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fx ALIGN=MIDDLE  ALT=\"1%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > of the job in one minute.  So we can write:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F50%2B1%2Fx=1%2F40 ALIGN=MIDDLE  ALT=\"1%2F50%2B1%2Fx=1%2F40\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fx=1%2F40-1%2F50 ALIGN=MIDDLE  ALT=\"1%2Fx=1%2F40-1%2F50\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "LCD for 40 and 50 would be 200, so:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fx=5%2F200-4%2F200 ALIGN=MIDDLE  ALT=\"1%2Fx=5%2F200-4%2F200\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fx=1%2F200 ALIGN=MIDDLE  ALT=\"1%2Fx=1%2F200\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=200 ALIGN=MIDDLE  ALT=\"x=200\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So it would take the apprentice 200 minutes or 3 hours and 20 minutes to do the installation by himself (presuming, of course, that the apprentice could do it by himself at all). </SPAN>\n" );
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