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sladkih [1.3K]
3 years ago
9

Calculate the population of 217 bison at the end of 2 years if it decreases at a rate of 7.5% per year. _____ bison

Biology
2 answers:
umka21 [38]3 years ago
8 0
Bison = Pe^-kt
(P is the initial amount of bison, which is 217)
(Also, make 7.5% negative to represenr population decay, not growth. Next, convert 7.5% to decimal form: 7.5/100 = .075)

Solve:

1. Bison = 217e^(-.075)(2)
2. Bison = 186.77 bison,
Since we can’t have .77 of a bison XD) and depending on rounding, you can have 186 or 187 bison!

Good luck!
kkurt [141]3 years ago
6 0

7.5% of 217 = 16.275

At end of 1 year bisons = 217 - 16.275 = 200.725

7.5% of 200.725 = 15.054375

At end of 2 years bisons = 200.725 - 15.054375 = 185.670625 (Rounding that to the tens)

=186

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