Question 1133117: One of the main contaminants of a nuclear accident, such as that at Chernobyl, is strontium-90, which decays exponentially at an annual rate of approximately 2.4% per year.
Write the percent of strontium-90 remaining, P, as a function of years, t, since the nuclear accident.
Answer by rothauserc(4718)   (Show Source):
You can put this solution on YOUR website! The exponential decay rate formula for this problem
:
P = a(1-b)^t, where P is the amount of strontium-90 remaining after the decay over a period of time, a is the original amount, b is the percent decrease in decimal form, and t is the time
:
For this problem, a is 1(100%), b is 0.024
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P = 1(1-0.024)^t
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P = 0.976^t
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