Final answer:
The half-life of caffeine can be modeled using the formula amount remaining = initial amount × (1/2)^(t / half-life). Using this formula, we can determine the amount of caffeine in the bloodstream after specific time intervals.
Step-by-step explanation:
The half-life of caffeine varies among individuals, but we can still write a function for the half-life time assuming a peak level of 80 mg of caffeine. Let's use the formula:
amount remaining = initial amount × (1/2)^(t / half-life)
where 't' is the time in hours. Using this formula, we can determine the amount of caffeine in the bloodstream after:
- 1 hour: 80 mg × (1/2)^(1 / half-life)
- 5 hours: 80 mg × (1/2)^(5 / half-life)
- 10 hours: 80 mg × (1/2)^(10 / half-life)
- 20 hours: 80 mg × (1/2)^(20 / half-life)