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dedylja [7]
3 years ago
9

How much of a radioactive kind of technetium will be left after 28 minutes if the half-life is 14 minutes and you start with 72

grams?
Mathematics
1 answer:
andre [41]3 years ago
4 0

Answer:

18 grams.

Step-by-step explanation:

28/14 = 2 so we divide 72 by 2 twice

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4 0
4 years ago
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10 is the missing number.
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