document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=864355>Question 864355</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve this problem<BR>\n" );
document.write( "Two people could finish laying a hardwood floor in seven hours.  If the first could do it alone in ten hours, how long could the other person do it alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #520932 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=520932\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = time it takes for person A to do the job alone<BR>\n" );
document.write( "y = time it takes for person B to do the job alone<BR>\n" );
document.write( "z = time it takes for them to get the job done when they work together\r<BR>\n" );
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document.write( "When we make those definitions above, it turns out that we can tie x,y,z together with this equation \r<BR>\n" );
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document.write( "In this case, \r<BR>\n" );
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document.write( "x = 10<BR>\n" );
document.write( "y = unknown (leave it as y for now)<BR>\n" );
document.write( "z = 7\r<BR>\n" );
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document.write( "Plug those into the equation and solve for y\r<BR>\n" );
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document.write( "So it will take <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2870%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%2870%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours for the second person to do the job alone.\r<BR>\n" );
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document.write( "Since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=70%2F3+=+23+%26+1%2F3 ALIGN=MIDDLE  ALT=\"70%2F3+=+23+%26+1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >, this means it takes <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2823%261%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%2823%261%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2823%261%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%2823%261%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours = <font color=\"red\">23 hours, 20 minutes</font>)\r<BR>\n" );
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document.write( "If you want the time in minutes only, then multiply it by 60 to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2870%2F3%29%2A60+=+4200%2F3+=+1400 ALIGN=MIDDLE  ALT=\"%2870%2F3%29%2A60+=+4200%2F3+=+1400\"   DISABLED_style= \"max-width:90%; height:auto;\" > minutes\r<BR>\n" );
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