SOLUTION: a lamp is bought for 360$ and eight years later it is bought for 200$ find the depreciation equation? assuming the depreciation is linear find the value of it after the first

Algebra ->  Equations -> SOLUTION: a lamp is bought for 360$ and eight years later it is bought for 200$ find the depreciation equation? assuming the depreciation is linear find the value of it after the first       Log On


   

Question 982128: a lamp is bought for 360$ and eight years later it is bought for 200$
find the depreciation equation?
assuming the depreciation is linear find the value of it after the first 5 years of ownership?


Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The depreciation/ yr =
+%28+360+-+200+%29+%2F+8+
+160%2F8+=+20+
-----------------
Let +D+ = depreciation after +n+ yrs
+D+=+20n+
+D%285%29+=+20%2A5+
+D%285%29+=+100+
-----------------
The value after +5+ yrs =
+360+-+D%285%29+
+360+-+100+=+260+
$260