SOLUTION: Please help me solve this question 4. An initial 65 mg sample of a radioactive substance decays to 30 mg in 100 years. (a) Find the rate of decay of the substance. (b) Find

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Question 1048579: Please help me solve this question

4. An initial 65 mg sample of a radioactive substance decays to 30 mg in
100 years.
(a) Find the rate of decay of the substance.
(b) Find the half-life of the substance.
(c) How long would it take until only 10 mg of the amount remains?

Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
This demonstration and lesson should be all the help you need:
exponential decay - a video lesson

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