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When a rock first formed, it contained 48 milligrams of potassium-40. How much potassium-40 would remain after three half-lives?
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When a rock first formed, it contained 48 milligrams of potassium-40. How much potassium-40 would remain after three half-lives?

User GMale
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13 votes

Answer:

72

Explanation:

User Domdambrogia
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