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laiz [17]
3 years ago
6

Iodine-125 has a half-life of about 60 days.

Mathematics
1 answer:
faust18 [17]3 years ago
4 0
We know that Iodine - 125 has a half life of 60 days.
300 : 60 = 5 . It means that it was halved 6 times.
Therefore: 500 mg * 0.5^5 =
= 500 mg * 0.5 * 0.5 * 0.5 * 0.5 * 0.5 =
= 500 mg * 0.03125 = 15.625 mg
Answer: 3. 15.625 mg.
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