document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1078899>Question 1078899</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The temperature, A(t), at time, t, of a body is given by:  A(t)=70+30e^-t\r<BR>\n" );
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document.write( "a)calculate the value of t when A(t)=70.55 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #693308 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=693308\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The temperature, A(t), at time, t, of a body is given by:  A(t)=70+30e^-t\r<BR>\n" );
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document.write( "a)calculate the value of t when A(t)=70.55<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "A(t) = 70+30e^-t = 70.55<BR>\n" );
document.write( "30e^-t = 0.55<BR>\n" );
document.write( "e^-t = 0.55/30<BR>\n" );
document.write( "e^t = 30/0.55<BR>\n" );
document.write( "t = ln(30/0.55)<BR>\n" );
document.write( " </SPAN>\n" );
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