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How old is a rock that contains 6.25% of its original potassium-40

How old is a rock that contains 6.25% of its original potassium-40
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How old is a rock that contains 6.25% of its original potassium-40

User Daniel Pilch
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1 Answer

3 votes

Answer:

if the original potassium is 40 it would be

1.25 billion years old

Step-by-step explanation:

User Cosmia Luna
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7.7k points
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