Question

Which equation represents a population of 250 animals that decrease at the annual rate of 12%

Answer 1

Answer: p = 250(0.88)^t

Answer 2

P = 250(1 - 0.12)^t

Explanation:

Since it is a decrease in population, we have 1 minus the rate. Since we start out with 250, we have 250 times 1 minus the rate. Since we are dealing with annual loss, we get 250(1 - 0.12)^t.

250 - starting population

1 - rate (0.12) - decreasing rate

t - time elapsed