Radioactive iodine is a by product of nuclear reactors using the following model:
A=Aoe^-0.0116t
, t is time in days. How long will it take for the radioactive iodine to decay to a
level of 25% of the original amount?

Question

Radioactive iodine is a by product of nuclear reactors using the following model: 
A=Aoe^-0.0116t
, t is time in days. How long will it take for the radioactive iodine to decay to a 
level of 25% of the original amount?

anonymous · Answer

|dw:1372385416917:dw|

anonymous · Answer

try that and u should see A0 will cancel

anonymous · Answer

can you show me the works? so i can know specifically?

anonymous · Answer

|dw:1372385542706:dw|