Respuesta :
Answer:
At 25 years
Step-by-step explanation:
123,000 x 2.375% = 2,921.25. This gives you the rate that the population is decreasing. How long will it take to get to 50,000. Do reverse operations to find this answer: 123,000 - 50,000 = 73,000, the population need to decrease by 73,000 to get to 50,000. So let's multiply our rate of 2,921.25 x 25 = 73,031 and our final step.. 123,000 - 73,031 = 49,969 below 50,000
The population of Leavetown 100 years from now is 11118
An exponential function is in the form:
y = abˣ
where y, x are variables, a is the initial value of y and b is the factor.
Let y represent the population of leave town after x years.
The population of Leavetown is 123,000 and is decreasing at a rate of 2.375%. Hence:
a = 123000, b = 100% - 2.375% = 0.97625
The exponential function becomes:
y = 123000(0.97625)ˣ
For a population of 50000:
50000 = 123000(0.97625)ˣ
0.4065 = (0.97625)ˣ
ln(0.4065) = xln(0.97625)
x = 37 years
It takes 37 years to reach a population of 50000
For 100 years:
y = 123000(0.97625)¹⁰⁰ = 11118
The population of Leavetown 100 years from now is 11118
Find out more on exponential function at: https://brainly.com/question/2456547