SOLUTION: Help!! 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 e
Question 850797: Help!! 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. Found 2 solutions by josmiceli, ewatrrr:Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website! You can work it out
Say, for now, that she bought it for dollars
Let = the value of the computer after years
After 1 year:
After 2 years:
I can factor out
Factor out
After 3 years:
Factor out
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This continues every year, so after years,
This is a geometric sequence
After 5 yrs, the computer is worth $738.11