The half-life of a drug in the bloodstream is 18 hours. What fraction of the original...

Question

Question

The half-life of a drug in the bloodstream is 18 hours. What fraction of the original drug dose remains in 48 hours? in 60 hours?

math Statistics-And-Probability

Answer 1

Answer #1

Fraction of original drug that remains in 48 hours = (1/2)^48/18 = (1/2)^8/3 = 0.1575

Fraction of original drug that remains in 60 hours = (1/2)^60/18 = (1/2)^10/3 = 0.0992

Answer 2

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