SOLUTION: Radium has a half-life of 1620 years. Write the decay function for a 3-mg sample. Find the amount of radium remaining after 50 years.

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Question 303952: Radium has a half-life of 1620 years. Write the decay function for a 3-mg sample. Find the amount of radium remaining after 50 years.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Radium has a half-life of 1620 years.
Write the decay function for a 3-mg sample.
A = 3*2^(-t/1620); t in yrs
:
Find the amount of radium remaining after 50 years.
In your calc enter 3*2^(-50/1620) = 2.9365 mg