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  3. 1) a radioactive substance decays at a rate propor

1) A radioactive substance decays at a rate proportional to the amount of the substance at...

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Advance Math

1) A radioactive substance decays at a rate proportional to theamount of the substance at present time. Initially 200 grams of athe substance was present and remain 80% of the initial amountafter 2 hours.

A.) Determine the amount of the substance remaining after 10hours (counted in grams)

B.) Determine the time that 60% of the initial amount of thesubstance has decayed (counted in hours)

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