3 years ago

Y=

Mathematics

1 answer:

mestny [16]3 years ago

8 0

Answer:

15/16 gram

Step-by-step explanation:

40 days represents 40/8 = 5 half-lives. That is, the quantity remaining is (1/2)^5 = 1/32 of the original amount, so is ...

(30 g)/32 = 15/16 g

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