document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1078775>Question 1078775</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a dish of lasagna baked at 350 degrees is taken out of the oven into a kitchen that is 68 degrees. After 7 minutes, the temperature of the dish is 299.8 degrees. what will its temperature be 12 minutes after it was taken out of the oven? Round to the nearest degree. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #693224 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=693224\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Newton’s Law of Cooling Formula is expressed by\r<BR>\n" );
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document.write( "T(t) = Ts + (T0 – Ts) e-Kt\r<BR>\n" );
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document.write( "Where,\r<BR>\n" );
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document.write( "t = time,\r<BR>\n" );
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document.write( "T(t) = temperature of the given body at time t,\r<BR>\n" );
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document.write( "Ts = surrounding temperature,\r<BR>\n" );
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document.write( "To = initial temperature of the body,\r<BR>\n" );
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document.write( "k = constant.<BR>\n" );
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document.write( "So:<BR>\n" );
document.write( "T(7)=68+(350-68)e^-kt<BR>\n" );
document.write( "299.8=68+282e^-7k<BR>\n" );
document.write( "e^-7k=0.82198581560283687943262411347518<BR>\n" );
document.write( "ln e^-7k=ln 0.82198581560283687943262411347518<BR>\n" );
document.write( "-7k=-0.1960321400324622534737708260656<BR>\n" );
document.write( "k=0.02800459143320889335339583229509\r<BR>\n" );
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document.write( "Then:<BR>\n" );
document.write( "T(12)=68+(350-68)e^-12(0.02800459143320889335339583229509)<BR>\n" );
document.write( "T(12)=68+(282)0.71458373316960990812286116751929<BR>\n" );
document.write( "T(12)=269.512 degrees 12 minutes out of the oven. &#9786;&#9786;&#9786;&#9786;\r<BR>\n" );
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document.write( " </SPAN>\n" );
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