Initially 500 milligrams of a radioactive substance were

Last updated: 6/10/2023

Initially 500 milligrams of a radioactive substance were present After 3 days the mass had decreased by 145 milligrams If the rate of decay is proportional to the amount of the substance present at time t find the amount remaining after 10 days rounded to the nearest milligram Present your work in an organized manner and Box your Final Answer