document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452536>Question 452536</A>: <I><SPAN STYLE=\"word-break: break-all;\"> By checking work records, a plumber finds that Raul can plumb a house in 48hr. Mira can do the same job in 36hr. How long would it take if they worked together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311075 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=311075\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Raul can plumb a house in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=48hr ALIGN=MIDDLE  ALT=\"48hr\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....->........rate is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F48 ALIGN=MIDDLE  ALT=\"1%2F48\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Mira can plumb a house in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36hr ALIGN=MIDDLE  ALT=\"36hr\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....->........rate is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=136 ALIGN=MIDDLE  ALT=\"136\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "now find the rate if they work together:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F48+%2B+1+%2F+36+=+1%2Fx ALIGN=MIDDLE  ALT=\"1%2F48+%2B+1+%2F+36+=+1%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >........ multiplying each term by common denominator <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=144 ALIGN=MIDDLE  ALT=\"144\"   DISABLED_style= \"max-width:90%; height:auto;\" >, you got\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2A144%2F48+%2B+1%2A144+%2F+36+=+1%2A144%2Fx ALIGN=MIDDLE  ALT=\"1%2A144%2F48+%2B+1%2A144+%2F+36+=+1%2A144%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2A3+%2B+1%2A4+=+144%2Fx ALIGN=MIDDLE  ALT=\"1%2A3+%2B+1%2A4+=+144%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7=+144%2Fx ALIGN=MIDDLE  ALT=\"7=+144%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7x=+144 ALIGN=MIDDLE  ALT=\"7x=+144\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=+20.571428571428571428571428571429 ALIGN=MIDDLE  ALT=\"x=+20.571428571428571428571428571429\"   DISABLED_style= \"max-width:90%; height:auto;\" >.which is approximately\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=+21h ALIGN=MIDDLE  ALT=\"x=+21h\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( " </SPAN>\n" );
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