Question

Plutonium-240 decays according to the function


where Q represents the quantity remaining after t years and k is the decay constant, 0.00011... How long will it take 24 grams of plutonium-240 to decay to 20 grams?

Answer 1

Will fan

Answer 2

So your equation before solving will look like:
20=24e^-0.00011t and you solve for t

Answer 3

So it's just a matter of applying basic log rules after that?

Answer 4

Yep

Answer 5

Thank u

Answer 6

No problem!!