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  • 27-10-2020
  • Mathematics
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If 14 g of a radioactive substance are present initially and 7 years later only 7 g remain, how much of the substance will be present after 9
yr?

Respuesta :

Northsk8er67
Northsk8er67 Northsk8er67
  • 27-10-2020

Answer:

5g

Step-by-step explanation:

14-9=5

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