document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=783796>Question 783796</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One crew can seal a parking lot in 15 hours and another in 20 hours. How long will it take to seal the parking lot if the two crews work together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #476914 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=476914\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> That question in other wording is, what is the combined rate of work for the two crews together?\r<BR>\n" );
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document.write( "Their rates would be additive, and you would use unit of job per hour.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F15%2B1%2F20=%284%2F4%29%281%2F15%29%2B%283%2F3%29%281%2F20%29=7%2F60 ALIGN=MIDDLE  ALT=\"1%2F15%2B1%2F20=%284%2F4%29%281%2F15%29%2B%283%2F3%29%281%2F20%29=7%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now if you want as HOURS per JOB, then find the reciprocal:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60%2F7 ALIGN=MIDDLE  ALT=\"60%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > HOURS per JOB<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%288%264%2F7%29 ALIGN=MIDDLE  ALT=\"highlight%288%264%2F7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Hours per Job. </SPAN>\n" );
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