document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167751>Question 167751</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0534432956/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I am working on equations with absolute value and I need help with this word problem, please.\r<BR>\n" );
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document.write( "The problem reads:\r<BR>\n" );
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document.write( "The number of U.S. teenagers in the age category \"15-19-years olds\" during any year between 1980 and 1998 can be modeled approximately by \r<BR>\n" );
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document.write( "T=332/x-11.5/+17000\r<BR>\n" );
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document.write( "where T is the number of \"15-19-years-olds\" in thousands and x is the number of years since January 1, 1980 (U.S. Census Bureau, Current Poplulatioin Reports.) Use the model to determine the year in which the number of 15-19-year olds in the U.S. was 18,700,000 (18,700 thousands).\r<BR>\n" );
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document.write( "The book comes up with the answer of 1986 and 1996, I cant even come close to them years....please help.  Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123661 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=123661\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The number of U.S. teenagers in the age category \"15-19-years olds\" during any year between 1980 and 1998 can be modeled approximately by <BR>\n" );
document.write( "T=332*|x-11.5| + 17000 <BR>\n" );
document.write( "where T is the number of \"15-19-years-olds\" in thousands and x is the number of years since January 1, 1980 (U.S. Census Bureau, Current Poplulatioin Reports.) Use the model to determine the year in which the number of 15-19-year olds in the U.S. was 18,700,000 (18,700 thousands). <BR>\n" );
document.write( "The book comes up with the answer of 1986 and 1996,<BR>\n" );
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document.write( "18,700 = 332*|x-11.5| + 17000 <BR>\n" );
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document.write( "332*|x-11.5| = 1700<BR>\n" );
document.write( "|x-11.5| = 5.12..<BR>\n" );
document.write( "x-11.5 = 5.12 or x-11.5 = -5.12...<BR>\n" );
document.write( "x = 16.62 or x = 6.38<BR>\n" );
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document.write( "1980 + 6.38 = 1986\r<BR>\n" );
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document.write( "1980 + 16.62 = 1996<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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