SOLUTION: The half-life of aspirin in your bloodstream is 12 hours. How long will it take for the aspirin to decay to 70% of the original dosage?

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Question 1001180: The half-life of aspirin in your bloodstream is 12 hours.
How long will it take for the aspirin to decay to 70% of the original dosage?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
hi there,
To reduce to 70% then
30% would be used up.
30% of 12 hours = 3.6 hours
So, it would take 3 hours 36 minutes
to reduce to 70%.
Hope this helps :-)