Answer the problem below or in the description:

Question

The rate of decay of radium is said to be proportional to the amount of radium

present. If the half-life of radium is 1700 years and there are 400 grams on hand now. Given the exponential decay equation, y=Ce^kt, solve the following:

a.) What is the value of e^k

b.) What equation best illustrates the problem?

c.) How much radium will be present in 845 years?

Answer 1

400 = Ce^(t/1400)k

The value of either k or t must be given to solve for C.

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