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# Exponential Decay (% decrease/depreciation) $A_t=A_0(1-i)^n$

- 1Use the equation $A_{t}=A_{0}(1-i)^n$ to solve. $$ $$ A car loses 10% of its value every year. If you purchased the car for $25,000, how much is it worth after 7 years?
- 2Use the equation $A_{t}=A_{0}(1-i)^n$ to solve. $$ $$ An investment loses 5% of its value every year. If you purchased the investment for $2000, how much is it worth after 5 years?
- 3Use the equation $A_{t}=A_{0}(1-i)^n$ to solve. $$ $$ A computer loses 20% of its value every year. If you purchased the computer for $1700, how much is it worth after 4 years?
- 4Use the equation $A_{t}=A_{0}(1-i)^n$ to solve. $$ $$ A camera is purchased for 1400 dollars. If it is worth $800 after 6 years, what was rate of depreciation?
- 5Use the equation $A_{t}=A_{0}(1-i)^n$ to solve. $$ $$ A chair is purchased for 550 dollars. If it is worth $100 after 4 years, what was rate of depreciation?
- 6Use the equation $A_{t}=A_{0}(1-i)^n$ to solve. $$ $$ Office equipment is purchased for 6000 dollars. If it is worth $2300 after 9 years, what was rate of depreciation?

$$e=mc^2$$