Mathematics
Mathematics, 10.12.2021 18:30, ashiteru123

The half-life of a radioactive kind of strontium is 3 hours. How much will be left after 9 hours, if you start with 80 grams of it?

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The half-life of a radioactive kind of strontium is 3 hours. How much will be left after 9 hours, if...

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