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Determine the initial amount of radioactive substance if after 22 years, the remaining unconverted substance is 50mg and after another 10 years the remaining unconverted substance is 40mg. Determine the decay rate factor and the half – life of the substance.

Determine the initial amount of radioactive substance if after 22 years, the remaining unconverted substance is 50mg and after another 10 years the remaining unconverted substance is 40mg. Determine the decay rate factor and the half – life of the substance.

College Algebra
College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter6: Exponential And Logarithmic Functions
Section6.1: Exponential Functions
Problem 62SE: A scientist begins with 100 milligrams of aradioactive substance that decays exponentially. After 35...
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" RADIOACTIVE DECAY"

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FORMULA: X=Xoe-kt

Determine the initial amount of radioactive substance if after 22 years, the remaining unconverted substance is 50mg and after another 10 years the remaining unconverted substance is 40mg. Determine the decay rate factor and the half – life of the substance.
Transcribed Image Text:Determine the initial amount of radioactive substance if after 22 years, the remaining unconverted substance is 50mg and after another 10 years the remaining unconverted substance is 40mg. Determine the decay rate factor and the half – life of the substance.
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