Question

One of the byproducts of nuclear power generation is Uranium-233. Uranium is decaying at a constant 32% rate per day. If 12,880 pounds are produced from a power plant, what will the amount be in 20 days?

Answer 1

A trick for solving this on a calculator is entering 12880*.68 twenty times

Or f(t)=a(l-r)^t

t=time
a=initial amount
r=rate of decrease

f(20)=12880(l-.32)^20

It is about 5.75564656018