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ivanzaharov [21]

3 years ago

15

Suppose the half-life of a certain radioactive substance is 12 days. Find the time when there will be 20% of the initial substan

ce remaining. Assume you have 1 gram of the original substance.
pls help, it due today

1 answer:

vazorg [7]3 years ago

7 0

Answer: 2.4% I think

12 x 20 / 100 = 2.4%

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