2. in 2010, the population of a town is 8500. the population decreases by 4.5% each year.

(a) write an equation to find the population of the town t years after 2010.

(b) in what year will the population of the town be 7000? show your work.

If the population of a certain town decreases by 4.5% each year, we form a geometric sequence with first term equal to 8,500 and r equal to 0.955.

(a)   The equation is then,

                                          An = (8,500)(0.955)^n

Where n is the number of years.

(b)   Substituting 7000 to An and solving for n,

7000 = 8500*(0.955)^n

            The value of n from the equation is 4.2 years. 

step-by-step explanation:

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step-by-step explanation: