Slipknot Slipknot

30-11-2017
Biology

contestada

If a radioactive substance's half-life is 40 years, about how much of a 30-gram sample will be left after 160 years?

A. 1.9 grams
B. 3.8 grams
C. 7.5 grams
D. 15 grams

Respuesta :

Аноним Аноним

30-11-2017

Hello,

Your brainliest answer would be:

D. 15 grams

Plz mark me brainliest!

Hope this helps!

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