SOLUTION: One type of uranium has radioactive decay rate of 0.5%. If 20 pounds of this uranium is available today, find how much will still remain after 30days.
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Question 83458: One type of uranium has radioactive decay rate of 0.5%. If 20 pounds of this uranium is available today, find how much will still remain after 30days.
-0.005t
Use y=20(2.7) and let t be 30 days.
Quantity left after 30 days =" "pounds.( round to the nearest tenth) Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! One type of uranium has radioactive decay rate of 0.5%. If 20 pounds of this uranium is available today, find how much will still remain after 30days.
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A(t) = Ao (1-0.005)^t
A(30) = 20(0.995)^30
A(30) = 20*0.8604
A(30) = 17.208 lbs.
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Cheers,
Stan H.
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