Question

a substance decays at a rate of 0.98% each year. if here is 3500 mg at the beginning, how much is remaining after 25 years?

Answer 1

≈2736 mg

Explanation:

0.98% = .0098

p = 3500(1 -0.0098)^25

p = 3500(0.9902)^25

p ≈ 2736

Answer 2

2642.5

Explanation:

I'm like 10% sure that's the right answer so I wouldn't put it down on the work if I were you