Multiple Choice
Solve the problem.
-The amount of alcohol in the bloodstream, A, declines at a rate proportional to the amount, that is, 
. If 
for a particular person, how long will it take for his alcohol concentration to decrease from 0.10% to 0.05%? Give your answer to the nearest tenth of an hour.
A) 2.1 hr
B) 1.4 hr
C) 0.3 hr
D) 2.8 hr
Correct Answer:
Verified
Correct Answer:
Verified
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