SOLUTION: Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it. a). Is the sequence formed by the value at the beginning of each

Algebra ->  Sequences-and-series -> SOLUTION: Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it. a). Is the sequence formed by the value at the beginning of each      Log On


   



Question 853255: Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it.
a). Is the sequence formed by the value at the beginning of each year arithmetic, geometric, or neither? Explain.
b). Write an explicit formula to represent the sequence.
c). Find the value of the computer at the beginning of the 6th year.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
a)geometric
ratio = .9
b)
Tn = t * r^(n - 1)
Tn = 1250 * .9^(n - 1)
c)Tn = 1250 * .9^(5)
Tn = 738.113 after 6 years
n = 820.125 after 5 years