Explanation:
A college professor has purchased a new car for commuting to class. This bicycle had a purchase price of $25,000 and depreciates at a constant rate of $1550 a year. What is the bicycle's value after 4 years? How long before the bicycle is worth zero?
25,000 - 1,550y
25,000 - 1,550(4)
25,000 - 6,200
= $18,800 after 4 years
0 = 25,000 - 1,550y
-25,000 = - 1,550y
y = 16.129 years (rounded to three places)