document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1017102>Question 1017102</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Working together, computer A and B can complete a data-processing job in 2 hours. Computer A working alone can do the job in 3 hours less that computer B working alone. How long does it take each computer to do the job by itself? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #633439 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=633439\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Working together, computer A and B can complete a data-processing job in 2 hours. Computer A working alone can do the job in 3 hours less than computer B working alone. How long does it take each computer to do the job by itself? <BR>\n" );
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document.write( "Together rate:: 1/2 job/hr<BR>\n" );
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document.write( "A rate:: 1/(x-3) job/hr<BR>\n" );
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document.write( "B rate:: 1/x job/hr<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/(x-3) + 1/x = 1/2<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "2x + 2(x-3) = x(x-3)<BR>\n" );
document.write( "2x + 2x-6 = x^2 - 3x<BR>\n" );
document.write( "x^2 - 7x + 6 = 0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "(x-6)(x-1) = 0<BR>\n" );
document.write( "Acceptable answer:: x = 6 hr (B time to do the job)<BR>\n" );
document.write( "x-3 = 3 hrs (A time to do the job)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "----------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );