document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=188568>Question 188568</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mike can assemble a computer table in 40 minutes and I can do it in 60 minutes. If Mike works for 20 minutes before I join him, how long will it take us to finish? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #141450 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=141450\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mike can assemble a computer table in 40 minutes and I can do it in 60 minutes. If Mike works for 20 minutes before I join him, how long will it take us to finish?<BR>\n" );
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document.write( "Let t = time required to finish, working together (in minutes)<BR>\n" );
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document.write( "Let the completed job = 1<BR>\n" );
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document.write( "(t+20) = Mike's working time<BR>\n" );
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document.write( "A shared work equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28t%2B20%29%29%2F40 ALIGN=MIDDLE  ALT=\"%28%28t%2B20%29%29%2F40\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F60 ALIGN=MIDDLE  ALT=\"t%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "multiply equation by 120; results:<BR>\n" );
document.write( "3(t+20) + 2t = 120<BR>\n" );
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document.write( "3t + 60 + 2t = 120<BR>\n" );
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document.write( "5t = 120 - 60<BR>\n" );
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document.write( "5t = 60<BR>\n" );
document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60%2F5 ALIGN=MIDDLE  ALT=\"60%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "t = 12 minutes to finish<BR>\n" );
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document.write( "Check solution (Mike works for 32 min)<BR>\n" );
document.write( "(32/40) + 12/60 =<BR>\n" );
document.write( ".8 + .2 = 1 </SPAN>\n" );
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