Mathematics, 26.05.2020 07:00 TaraC

A sample of a radioactive substance decayed 40% over the course of 9 weeks. How many grams were in the sample originally if 22.80 grams of the substance were remaining after the 9 weeks?

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A sample of a radioactive substance decayed 40% over the course of 9 weeks. How many grams were in t...

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