document.write( "Question 280936: The Half-Life (time to decay to 50% of original amount) of a radioactive element is 20000years. Determine the time to decay to 30% or original amt. (hint: use any intitial quantity. It will end up the same. Use A(t)=A010^kt, where A0 is the initial amount \n" ); document.write( "

Algebra.Com's Answer #217689 by JBarnum(2146) $\"\"$ $\"About$

You can put this solution on YOUR website!
um this is def not an age prob \n" ); document.write( "

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