A business purchases a computer system for $3000. If the value of the system decreases at a rate of 15% per year, how much is the computer worth after 4 years?
The computer is worth $1,200 after four years. Initial price- (Initial price x Rate of decrease x amount of years), so... 3,000-(3,000x0.15x4)=3,000-1,800=1,200 Hope this helps P.S. the 0.15 comes from 15%. With percentages you move the decimal point twice to the left so 15.0 twice to the left is 0.15 as 3.0 is 0.03