proportional

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter10: Exponential And Logarithmic Functions
Section10.5: Solve Exponential And Logarithmic Equations
Problem 10.88TI: Researchers recorded that a certain bacteria population declined from 700,000 to 400,000 in 5 hours...
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Consider the constant rate of decrease of a certain microorganism. At the start, there are 
10,000 microorganisms in a certain place. After 1 minute, the population decreased to 
6,000. If the microorganisms is directly proportional to the constant rate of decay and 
such decrease in number continues at the same rate, then how many microorganisms will 
there be after 1.5 minutes?

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