Question

HELP PLEASE!!!!!

A city has a population of 360,000 people. Suppose that each year the population grows by 4.5%. What will the population be after 12 years?

Answer 1

554400 people

Explanation:

4.5% of 360,000= 16200

16200 times 12= 194400

194400+360000=554400

Answer 2

610,517 people

Explanation:

This is exponential. The standard form for this function is

`y=a(b)^x` where a is the initial amount, and b will be replaced with (1+r), which is the growth rate. t is time in years. Our particular model then is

`y=360000(1.045)^x`

To solve the probelm, we will simply replace x with 12 and solve for y:

`y=360000(1.045)^(12)`

which gives us

y = 610,517 people