Question

A fish population that started at 250 has begun to decrease by 12 percent each week. Which equation below could be used to model this situation?

P=250(0.12)x

B
P=250(0.88)x

C
P=12(250)x

D
P=−250(0.12)x

Answer 1

Answer: A. P=250(0.12)x

Explanation:

12%= 0.12

250 x 0.12 = the amount decreased by each week

Answer 2

250 - 250 * 12% = 250 * (1 - 12%) = 250 * 0,88

with x = fish number

=> P = 250 * 0,88 * x