Soon after taking an aspirin, a patient has absorbed 310 mg of the drug. If the amount of aspirin in the bloodstream decays exponentially with half being removed every 2 hours, find the amount of aspirin in the bloodstream after 9 hours.
Select the correct answer.

A)1,370
B) 137
C) 50
D) 13.7
E) 2.21

Question

Soon after taking an aspirin, a patient has absorbed 310 mg of the drug. If the amount of aspirin in the bloodstream decays exponentially with half being removed every 2 hours, find the amount of aspirin in the bloodstream after 9 hours. ​
Select the correct answer.
​
A)1,370
B) 137
C) 50
D) 13.7
E) 2.21

Quizplus · Accepted Answer

The amount of aspirin in the bloodstream after a certain number of hours can be calculated using the formula for exponential decay: A = P(1/2)^(t/h), where A is the amount after time t, P is the initial amount, and h is the half-life. Here, P = 310 mg, t = 9 hours, and h = 2 hours. Plugging these values into the formula gives A = 310(1/2)^(9/2) ≈ 13.7 mg.

Soon After Taking an Aspirin, a Patient Has Absorbed 310