document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=111120>Question 111120</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0536913331/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve the following problem:\r<BR>\n" );
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document.write( "Mark and Rachel both work for Smith Landscaping Company.  Mark can finish a planting job in 4 hours, while it takes Rachel 5 hours to finish the same job.  If Mark and Rachel will work together on the job, and the cost of labor is $40 per hour, what should the labor estimate be?\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 #81148 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=81148\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mark and Rachel both work for Smith Landscaping Company. Mark can finish a planting job in 4 hours, while it takes Rachel 5 hours to finish the same job. If Mark and Rachel will work together on the job, and the cost of labor is $40 per hour, what should the labor estimate be? <BR>\n" );
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document.write( "Let t = time required when working together:<BR>\n" );
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document.write( "Let the completed job = 1<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F4 ALIGN=MIDDLE  ALT=\"t%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F5 ALIGN=MIDDLE  ALT=\"t%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
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document.write( "Multiply equation by 20 to get rid of the denominators<BR>\n" );
document.write( "20*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F4 ALIGN=MIDDLE  ALT=\"t%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > + 20*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F5 ALIGN=MIDDLE  ALT=\"t%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 20(1)<BR>\n" );
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document.write( "Cancel out the denominators and you have:<BR>\n" );
document.write( "5t + 4t = 20<BR>\n" );
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document.write( "9t = 20<BR>\n" );
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document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2F9 ALIGN=MIDDLE  ALT=\"20%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
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document.write( "Find the labor cost:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2F9 ALIGN=MIDDLE  ALT=\"20%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" > * 40 = $88.89, probably estimate $90 or $100 </SPAN>\n" );
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