document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=889043>Question 889043</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The temperature in a laboratory must be between 64 degrees and 72 degrees Fahrenheit, inclusive. If t is the temperature in the laboratory, which of the following inequalities represents this situation?<BR>\n" );
document.write( "A. | t-4 | > 68<BR>\n" );
document.write( "B. | t+4 | < 68<BR>\n" );
document.write( "C. | 68+t | < 4<BR>\n" );
document.write( "D. | 68-t |  < 4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #537865 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=537865\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Midpoint: (64+72)/2 = 136/2 = 68\r<BR>\n" );
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document.write( "The midpoint of the temperature range is 68 degrees. \r<BR>\n" );
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document.write( "t is some unknown temp. The difference between the unknown temp and the midpoint is 68-t and it's forced to be positive when we write |68-t|\r<BR>\n" );
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document.write( "Notice how 72 - 68 = 4 and 68 - 64 = 4\r<BR>\n" );
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document.write( "So the temps can't fluctuate more than 4 degrees, which means the final answer is <font color=\"red\">|68 - t| < 4</font> </SPAN>\n" );
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