document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=121345>Question 121345</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A bricklayer and an electrician together spend 90 hours working on a new house.  If the bricklayer earns $12 per hour, the electrician earns $16 an hour, and the owner pays them a total of $1350 for their work, how many hours does each worker spend on 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 #89114 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=89114\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+y=90 or x=90-y<BR>\n" );
document.write( "12x+16(90-x)=1350<BR>\n" );
document.write( "12x+1440-16x=1350<BR>\n" );
document.write( "-4x=1350-1440<BR>\n" );
document.write( "-4x=-90<BR>\n" );
document.write( "x=-90/-4<BR>\n" );
document.write( "x=22.5 hours for the bricklayer.<BR>\n" );
document.write( "90-22.5=67.5 hours for the electrician.<BR>\n" );
document.write( "proof<BR>\n" );
document.write( "12*22.5+16*67.5=1350<BR>\n" );
document.write( "270+1080=1350<BR>\n" );
document.write( "1350=1350<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );