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

Mathematics

Dennis Donovan

20 October, 01:38

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?

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Answers (2)

Know the Answer?

Kenna Byrd · Answer 1

around 3.5 hours

Will · 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.