Question

Suppose the population of trout in a certain stretch of a river is 4000. In about how many years will the population of trout be 700 if the decay rate is 35%? Use the equation 700 = (4000)(0.65)x and round the value of x to the nearest year.

Answer 1

It will take four years

Explanation:

Answer 2

700=(4000)(0.65)x
4000 x 0.65
700=(2600)x
700=2600x
0.27=x
(rounded = 1 year)