The half life of a drug in the bloodstream is 9 hours. What fraction of the original drug dose remains after 12 hours? In 24 hours?

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter10: Exponential And Logarithmic Functions
Section10.5: Solve Exponential And Logarithmic Equations
Problem 10.90TI: The half-life of radioactive iodine is 60 days. How much of a 50-mg sample will be left in 40 days?
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The half life of a drug in the bloodstream is 9 hours. What fraction of the original drug dose remains after 12 hours? In 24 hours?

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