Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter24: Percent Practical Applications
Section: Chapter Questions
Problem 33A: The average percent defective product of a manufacturing plant is 1.20%. On a particular day 50...
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Question
Blood Alcohol Level
The percentage of alcohol in a person's bloodstream t hr after drinking 8 fluid oz of whiskey is given byA(t) = 0.23te−0.4t (0 ≤ t ≤ 12).†
(a) What is the percentage of alcohol in a person's bloodstream after 1/2 hr? (Round your answers to three decimal places.)
_______ and after 7 hr? _________
(b) How fast is the percentage of alcohol in a person's bloodstream changing after
1/2 hr? (Round your answers to three decimal places.)
_______ and after 7hr? __________
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