Broccoil cost 3.14$ a pound at the market if mary bought 2.5 pounds what was the cost
1 answer:
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Answer:
It will take 4.84 hours for the drug to decay to 93% of the original dosage.
Step-by-step explanation:
We are given that the half-life of a certain tranquilizer in the bloodstream is 47 hours.
The given exponential model is:
Now, we know that A becomes half after 47 hours which means that;
Using this in the above equation we get;
where t = 47 hours
Taking log on both sides we get;
k = -0.015
Now, the time it will take for the drug to decay to 93% of the original dosage is given by;
where t is the required time
Taking log on both sides we get;
t = 4.84 hours
Hence, it will take 4.84 hours for the drug to decay to 93% of the original dosage.
Hope this helps. (238 R3)
