document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=79426>Question 79426</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Arlene and AJ are Chemist.  AJ can do an emulsion polymerization experiment in 10 hours.  If AJ and Arlene work together they can do the experiment in 6 hours. How long will it take Arlene working by herself to do the experiment? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #56994 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=56994\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Arlene and AJ are Chemist. AJ can do an emulsion polymerization experiment in 10 hours. If AJ and Arlene work together they can do the experiment in 6 hours. How long will it take Arlene working by herself to do the experiment?<BR>\n" );
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document.write( "Let t = time for Ar to do the job by herself<BR>\n" );
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document.write( "Let the completed job = 1<BR>\n" );
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document.write( "A simple equation:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2F10 ALIGN=MIDDLE  ALT=\"6%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2Ft ALIGN=MIDDLE  ALT=\"6%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
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document.write( "Mult eq by 10t to get rid of the denominators, you then have:<BR>\n" );
document.write( "6t + 6(10) = 10t<BR>\n" );
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document.write( "6t - 10t = -60<BR>\n" );
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document.write( "-4t = -60<BR>\n" );
document.write( "t = -60/-4<BR>\n" );
document.write( "t = + 15 hrs Ar by herself:<BR>\n" );
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document.write( "Check: <BR>\n" );
document.write( "6/10 + 6/15 =<BR>\n" );
document.write( "3/5 + 2/5 = 1 </SPAN>\n" );
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