document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=37112>Question 37112</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0618503072/algebrahomeworkh>Introductory Algebra An Applied Approach</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> An apprentice mason takes 8h longer to build a small fireplace than an experienced mason. Working together, they can build the fireplace in 3h. How long would it take each mason, working alone, to complete the fireplace? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #22797 by </B><A HREF=/tutors/aboutme.mpl?userid=Paul><B>Paul(988)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Paul><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=22797\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Apprentince takes x+8 hours<BR>\n" );
document.write( "And experinced worker takes x hours<BR>\n" );
document.write( "Together it is 3 hours<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F%288%2Bx%29%2B1%2Fx=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F%288%2Bx%29%2B1%2Fx=1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "8+x+x=[(x)(x+8)]/3<BR>\n" );
document.write( "2x+8=(x^2+8x)/3<BR>\n" );
document.write( "6x+24=x^2+8x<BR>\n" );
document.write( "x^2+2x-24=0\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?x=\frac{-2\frac{+}{-}sqrt(2^2-4(-24))}{2*1}\"><BR>\n" );
document.write( "solve that and you get x=4<BR>\n" );
document.write( "4+8=12<BR>\n" );
document.write( "Hence, it takes an apprentice 12 hours to do that job and it takes an experinced worker 4 hours to do the job.<BR>\n" );
document.write( "Paul. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );