document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=156327>Question 156327</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780395977255/algebrahomeworkh>Algebra and Trigonometry Structure and Method Book 2</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> a plumber charged $110 for three-hour job and $160 for a five-hour job. At this rate, how much would he charge for an eight-hour job? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #115219 by </B><A HREF=/tutors/aboutme.mpl?userid=gonzo><B>gonzo(654)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=gonzo><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=115219\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3h = 110<BR>\n" );
document.write( "5h = 160\r<BR>\n" );
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document.write( "5h - 3h = 50 becomes\r<BR>\n" );
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document.write( "2h = 50\r<BR>\n" );
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document.write( "h = 25.\r<BR>\n" );
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document.write( "looks like plumber is charging 25 per hour plus a fixed cost.\r<BR>\n" );
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document.write( "for 3h job fixed cost = 110 - 75 = 35 dollars.\r<BR>\n" );
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document.write( "for 5h job fixed cost = 160 - 125 = 35 dollars.\r<BR>\n" );
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document.write( "so fixed cost is 35 dollars plus 25 dollars per hour.\r<BR>\n" );
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document.write( "based on that, 8h job should be 35 + (8 * 25) = 235 dollars.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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