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Plutonium-32 has a half-life of 14.2 days. How many half-lives have passed in 99.4 days?

User Ryan Stack
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2 Answers

8 votes
8 votes
The answer is 7. All you have to do is divide 99.4 by 14.2
User Whiz
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22 votes
22 votes

Answer:

it's 7 I know it was easy because 99.4÷14.2

User ZyQux
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