document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=146667>Question 146667</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321233832/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this word problem: <BR>\n" );
document.write( "An electrician, a carpenter, and a plumber are hired to work on a house. The electrician earns $21 per hour, the carpenter $19.50 per hour, and the plumber $24 per hour. The first day on the job,  they worked a total of 21.5 hr and earned a total of $469.50. If the plumber worked 2 more hours than the carpenter did, how many hours did each work?   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #107087 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=107087\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> e+c+p=21.5\r<BR>\n" );
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document.write( "21e+19.5c+24p=469.5\r<BR>\n" );
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document.write( "p=c+2\r<BR>\n" );
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document.write( "substituting __ e+c+(c+2)=21.5 __ e=19.5-2c\r<BR>\n" );
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document.write( "substituting __ 21(19.5-2c)+19.5c+24(c+2)=469.5 __ (21*19.5)-42c+19.5c+24c+48=469.5 __ 1.5c=12 __ c=8\r<BR>\n" );
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document.write( "substituting __ p=(8)+2 __ p=10\r<BR>\n" );
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document.write( "substituting __ e+(8)+(10)=21.5 __ e=3.5 </SPAN>\n" );
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