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20. [0/2 Points] DETAILS PREVIOUS ANSWERS OSCAT1 6.7.401. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A doctor prescribes 175 milligrams of a therapeutic drug that decays by about 30% 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) = 175 70 X 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. C x mg Recall the model for continuous exponential decay. How is the decay rate of the drug in the given problem determined from the given percentage? Which constant does the decay rate correspond to in the model? What is the initial value? Additional Materials eBook