chengenlili chengenlili

27-10-2020
Mathematics

contestada

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

27-10-2020

Answer:

5g

Step-by-step explanation:

14-9=5

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