SOLUTION: A radioactive element decays at a rate of 19% / year. Initially, there is 10,000 lbs of this material. How much will be left after 21 years? (round to two decimal places)
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-> SOLUTION: A radioactive element decays at a rate of 19% / year. Initially, there is 10,000 lbs of this material. How much will be left after 21 years? (round to two decimal places)
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Question 1170824: A radioactive element decays at a rate of 19% / year. Initially, there is 10,000 lbs of this material. How much will be left after 21 years? (round to two decimal places)
A.7.14 lbs
B.About zero lbs
C.Solution not listed
D.119.73 lbs Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! This would be 10000(0.81)^21. The 0.81 is the amount left of the previous year with each passing year
=119.73 lbs.
D
