document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=730115>Question 730115</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Berlyium-11 decomposes into boron-11 with a half life of 13.8 seconds. How long will it take 2400g of berlyium-11 to decompose into 75g of berlyium-11?\r<BR>\n" );
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document.write( "Thats the question, and I tried solving it but im stuck. This is what I have so far:<BR>\n" );
document.write( "75=2400 x 2^-t/13.8<BR>\n" );
document.write( "0.01325=27.6 (-t) </SPAN>\n" );
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