SOLUTION: A doctor prescribes 100 milligrams of a therapeutic drug that decays by about 20% each hour. Write an exponential model representing the amount A in milligrams of the drug remainin

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Question 1129573: A doctor prescribes 100 milligrams of a therapeutic drug that decays by about 20% each hour. Write an exponential model representing the amount A in milligrams of the drug remaining in the patient's system after t hours.
A(t) =
Use the formula to find the amount of the drug that would remain in the patient's system after 3 hours. Round to the nearest milligram.

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
This would be 100*(0.8)^t
after 3 hours, it would be 100*0.512=51.2 mg rounded to 51 mg