document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=922250>Question 922250</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student did a word-processing job for $18. It took him 8 hours longer than he expected, and therefore he earned $3 per hour less than he anticipated. How long did he expect that it would take to do the job?<BR>\n" );
document.write( "( I know how to set it up, bu my answer isn't checking out)<BR>\n" );
document.write( "I set it up as (18/x - 3=18/x+2) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #559451 by </B><A HREF=/tutors/aboutme.mpl?userid=JoelSchwartz><B>JoelSchwartz(130)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JoelSchwartz><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=559451\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x=amount of time he expected<BR>\n" );
document.write( "x+8=amount of time he actually worked<BR>\n" );
document.write( "r=amount per hour he expected<BR>\n" );
document.write( "r-3=rate per hour he got<BR>\n" );
document.write( "rx=18<BR>\n" );
document.write( "18=(x+8)(r-3)<BR>\n" );
document.write( "18=xr+8r-3x-24<BR>\n" );
document.write( "0=8r-3x-24<BR>\n" );
document.write( "24=8r-3x<BR>\n" );
document.write( "r=18/x<BR>\n" );
document.write( "24=8*18/x-3x<BR>\n" );
document.write( "24=144/x-3x<BR>\n" );
document.write( "24x=144-3x^2<BR>\n" );
document.write( "-3x^2-24x+144=0<BR>\n" );
document.write( "x^2+8x-48=0<BR>\n" );
document.write( "(x+12)(x-4)=0<BR>\n" );
document.write( "x=4<BR>\n" );
document.write( "r=18/x<BR>\n" );
document.write( "18/4=r<BR>\n" );
document.write( "r=4.5<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );