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How much of a radioactive kind of nitrogen will be left after 30 minutes if you start with 1,920 grams and the half-life is 10 minutes?
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How much of a radioactive kind of nitrogen will be left after 30 minutes if you start with 1,920 grams and the half-life is 10 minutes?

User Samkart
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the answer is 1.92!!

1,920/10= 192
192/10= 19.2
19.2/10= 1.92

10+10+10= 30
User Stephen Niedzielski
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