Problema Solution
A radioactive material decays according the formula below, where A0 is the initial amount present and t is measured in years. Find the amount present in 4 years.
A = A_0 (2 / 3)^t
Answer provided by our tutors
t = 4 years
A = A_0 (2 / 3)^t
A = A_0 (2 / 3)^4
A = 0.1975 A_0