S22400589 S22400589

04-05-2020
Mathematics

contestada

If 40% of a radioactive substance remains after 20 years, what is the half-life of the substance?

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abrienbowman7 abrienbowman7

04-05-2020

Answer:

192 Hr

Step-by-step explanation:

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cuentaprivada046 cuentaprivada046

04-05-2020

Answer:

it would be 176hrs of half life

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