SOLUTION: My Toyota Avalon was purchased for $27,500 in 1997. It has been decreasing in value at an average rate of 15% annually since then. When is its approximate value now?

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: My Toyota Avalon was purchased for $27,500 in 1997. It has been decreasing in value at an average rate of 15% annually since then. When is its approximate value now?      Log On


   



Question 171325: My Toyota Avalon was purchased for $27,500 in 1997. It has been decreasing in value at an average rate of 15% annually since then. When is its approximate value now?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
well if you figure it to be 11 years
formula is total amount(27,500) times .15%5Enn being the number of years of depreciation. In general depreciation equals Tx%5En where T is the Total being depreciated, x is the rate of depreciation, and n is the number of years.
:
%28.15%29%5E11 gives us a percentage of .167
:
multiply that by 27500 and the appx value is .167%2827500%29=4601.92dollars