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a radioactive substance has a half-life of 10 years.if you start with 30 grams of the substance, how much will remain after 30 years.
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a radioactive substance has a half-life of 10 years.if you start with 30 grams of the substance, how much will remain after 30 years.

User J Marlow
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Your answer is 9,000. If you times 30 by 10 you’ll get 300, that’s how many grams you’ll have in 10 years. If you want to know how many grams you’ll have in 30 years you will get 9,000
User Soumil Deshpande
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