Exponential apps

Exponential apps - What percent remains after 20 minutes?...

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MAC1105: Examples of Exponential Growth and Decay 1) A population increases by 2.5% annually. After how many years would this population increase by 20%? 2) A quantity doubles every 25 years. After how many years would it triple? 3) A quantity has a half-life of 15 minutes.
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Unformatted text preview: What percent remains after 20 minutes? 4) A quantity doubles every 10 years. By what percent has it increased after 7 years? 5) A quantity has a half-life of 60 years. What percent decays each year?...
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This document was uploaded on 11/16/2011.

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