document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1198677>Question 1198677</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The half-life of a radioactive substance is 33.3 years.<BR>\n" );
document.write( "a. Find the exponential decay model for this substance.<BR>\n" );
document.write( "b. How long will it take a sample of 400 grams to decay to 300 grams?<BR>\n" );
document.write( "c. How much of the sample of 400 grams will remain after 20 years? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #832306 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=832306\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=p%281%2F2%29%5E%28x%2F33.3%29 ALIGN=MIDDLE  ALT=\"y=p%281%2F2%29%5E%28x%2F33.3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > for p any initial amount, y final amount after x time in years </SPAN>\n" );
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