document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194522>Question 1194522</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The rate of decay of radium is said to be proportional to the amount of radium<BR>\n" );
document.write( "present. If the half-life of radium is 1700 years and there are 400 grams on hand now, how<BR>\n" );
document.write( "much radium will be present in 900 years given the exponential decay equation, 𝑦 = Ce^kt.<BR>\n" );
document.write( "what is the value of e^k, and how much radium will be present in 845 years. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #826744 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=826744\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Half-life information, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Ae%5E%28kt%29=1%2F2 ALIGN=MIDDLE  ALT=\"1%2Ae%5E%28kt%29=1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%281%29%2Bln%28e%5E%28kt%29%29=ln%281%2F2%29 ALIGN=MIDDLE  ALT=\"ln%281%29%2Bln%28e%5E%28kt%29%29=ln%281%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=kt=ln%281%2F2%29 ALIGN=MIDDLE  ALT=\"kt=ln%281%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=kt=-ln%282%29 ALIGN=MIDDLE  ALT=\"kt=-ln%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=%28-ln%282%29%29%2Ft ALIGN=MIDDLE  ALT=\"k=%28-ln%282%29%29%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=%28-ln%282%29%29%2F1700 ALIGN=MIDDLE  ALT=\"k=%28-ln%282%29%29%2F1700\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=-0.0004077 ALIGN=MIDDLE  ALT=\"k=-0.0004077\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28y=Ce%5E%28-0.0004077t%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28y=Ce%5E%28-0.0004077t%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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