SOLUTION: A patient is injected with 100 units of a drug. The amount of drug present in the patient's body is modelled by d=De^-kt. If it takes 4 hours for the drug to reduce by 90%, fin

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: A patient is injected with 100 units of a drug. The amount of drug present in the patient's body is modelled by d=De^-kt. If it takes 4 hours for the drug to reduce by 90%, fin      Log On


   



Question 1139426: A patient is injected with 100 units of a drug. The amount of drug present in the patient's body is modelled by d=De^-kt.
If it takes 4 hours for the drug to reduce by 90%, find D and k and the rate of decay after 10 minutes?
Thankyou

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