23. The half-life of caffeine in the body is approximately 5 hours (Brachtel and Richter, 1992). If you drink 1 cup of black tea with 50mg of caffeineat7pm... a)how much caffeine will be in your system at 11 pm? b)Assuming you can’t fall asleep until there is less than 20mg of caffeine in your system, how late will you stay up before you can sleep?

Intermediate Algebra
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Chapter12: Sequences, Series And Binomial Theorem
Section12.3: Geometric Sequences And Series
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23. The half-life of caffeine in the body is approximately 5 hours (Brachtel and Richter, 1992). If you drink 1 cup of black tea with 50mg of caffeineat7pm...

a)how much caffeine will be in your system at 11 pm?

b)Assuming you can’t fall asleep until there is less than 20mg of caffeine in your system, how late will you stay up before you can sleep?

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