The half life of caffeine in a healthy adult is 5.7 hours. Jeremiah drinks 16 ounces of caffeinated coffee in the morning. How long will it take for only 40% of the caffeine to remain in his body?

Question

Karly

Mathematics

Today, 19:01

The half life of caffeine in a healthy adult is 5.7 hours. Jeremiah drinks 16 ounces of caffeinated coffee in the morning. How long will it take for only 40% of the caffeine to remain in his body?

+5

Answers (2)

Know the Answer?

Nathen · Answer 1

around 3.5 hours

Zariah Baxter · Answer 2

The correct answer 7.5 hours.

Step-by-step explanation:

In this case, half life refers to the time that is necessary for a quantity to reduce to half of its original value. In this case, the half-life of caffeine is 5.7 hours, meaning that if we had 10 ounces of it, the remaining after this time would be 5 ounces.

In the question, the initial amount is 16 ounces, so it will take 7.5 hours of the caffeine to remain in his body.