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Initially 100 milligrams of a radioactive substance was present. After 5 hours the mass had decreased by 6%. If the rate of decay is proportional to the amount of substance present at time t, determine the half life of the radioactive substance. (Round your answer to one decimal place)

Initially 100 milligrams of a radioactive substance was present. After 5 hours the mass had decreased by 6%. If the rate of decay is proportional to the amount of substance present at time t, determine the half life of the radioactive substance. (Round your answer to one decimal place)

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Initially 100 milligrams of a radioactive substance was present. After 5 hours the mass had decreased by 6%. If the rate of decay is proportional to the amount of substance present at time t, determine the half life of the radioactive substance. (Round your answer to one decimal place)

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