document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=271324>Question 271324</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Stuart agrees to a house - painting job for 900$. he takes 4 days longer than expected, and he has earned 18.75$ less per day than expected. in how many days did he expect to complete the house?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #198710 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=198710\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d ALIGN=MIDDLE  ALT=\"d\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of days he expected job to take<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+%2B+4 ALIGN=MIDDLE  ALT=\"d+%2B+4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of days job actually took<BR>\n" );
document.write( "-----------------------------------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=900%2F%28d+%2B+4%29+=+900%2Fd+-+18.75 ALIGN=MIDDLE  ALT=\"900%2F%28d+%2B+4%29+=+900%2Fd+-+18.75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2A%28d+%2B+4%29 ALIGN=MIDDLE  ALT=\"d%2A%28d+%2B+4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=900d+=+900%2A%28d+%2B+4%29+-+18.75%2Ad%2A%28d+%2B+4%29 ALIGN=MIDDLE  ALT=\"900d+=+900%2A%28d+%2B+4%29+-+18.75%2Ad%2A%28d+%2B+4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=900d+=+900d+%2B+3600+-+18.75d%5E2+-+75d ALIGN=MIDDLE  ALT=\"900d+=+900d+%2B+3600+-+18.75d%5E2+-+75d\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18.75d%5E2+%2B+75d+-+3600+=+0 ALIGN=MIDDLE  ALT=\"18.75d%5E2+%2B+75d+-+3600+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I'll solve with quadratic formula<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"d+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+18.75 ALIGN=MIDDLE  ALT=\"a+=+18.75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+75 ALIGN=MIDDLE  ALT=\"b+=+75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c+=+-3600 ALIGN=MIDDLE  ALT=\"c+=+-3600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+%28-75+%2B-+sqrt%28+75%5E2-4%2A18.75%2A%28-3600%29+%29%29%2F%282%2A18.75%29+ ALIGN=MIDDLE  ALT=\"d+=+%28-75+%2B-+sqrt%28+75%5E2-4%2A18.75%2A%28-3600%29+%29%29%2F%282%2A18.75%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+%28-75+%2B-+sqrt%285625+%2B+270000+%29%29%2F37.5+ ALIGN=MIDDLE  ALT=\"d+=+%28-75+%2B-+sqrt%285625+%2B+270000+%29%29%2F37.5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+%28-75+%2B-+sqrt%28275625%29%29%2F37.5+ ALIGN=MIDDLE  ALT=\"d+=+%28-75+%2B-+sqrt%28275625%29%29%2F37.5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+%28-75+%2B-+525%29%2F37.5+ ALIGN=MIDDLE  ALT=\"d+=+%28-75+%2B-+525%29%2F37.5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+%28-75+%2B+525%29%2F37.5 ALIGN=MIDDLE  ALT=\"d+=+%28-75+%2B+525%29%2F37.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+12 ALIGN=MIDDLE  ALT=\"d+=+12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "He expected to complete the house in 12 days<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=900%2F%28d+%2B+4%29+=+900%2Fd+-+18.75 ALIGN=MIDDLE  ALT=\"900%2F%28d+%2B+4%29+=+900%2Fd+-+18.75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=900%2F%2812+%2B+4%29+=+900%2F12+-+18.75 ALIGN=MIDDLE  ALT=\"900%2F%2812+%2B+4%29+=+900%2F12+-+18.75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2A16 ALIGN=MIDDLE  ALT=\"12%2A16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=900%2A12+=+900%2A16+-+18.75%2A12%2A16 ALIGN=MIDDLE  ALT=\"900%2A12+=+900%2A16+-+18.75%2A12%2A16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10800+=+14400+-+3600 ALIGN=MIDDLE  ALT=\"10800+=+14400+-+3600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10800+=+10800 ALIGN=MIDDLE  ALT=\"10800+=+10800\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );