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Jill0087:
A certain species of fish has been declining in population by 7%. The population at time zero is 500,000. What is the rate of decay?
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Gdeinward:
This is correct right? @Vocaloid
Gdeinward:
Where C is initial number, x is percentage of decrease, and y is the time usually represented by year.
Gdeinward:
\[D = C(1-\frac{ x }{ 100 })^{x}\]
Gdeinward:
so we have D = 500,000(1 - 0.07)^2. The 2 represents 2 years, for example purposes. Can you solve the equation?
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