olive03
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Caffeine in the blood stream has a half life of 5 hours. A venti
sized coffee from Starbucks has 415 mg of caffeine. How much
caffeine would be left (to the nearest whole number) behind in
your body 22 hours after drinking a venti coffee?​

Respuesta :

MathPhys

Answer:

20 mg

Step-by-step explanation:

The amount remaining is:

A = P (½)^(t / T)

where P is the original amount,

t is time,

and T is the half life.

A = 415 (½)^(22/5)

A ≈ 20

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