Please help! Fan and Medal!The value of a car after t years can be found using the formula V = C(1 - r)^t, where V is the current value of the car, C is the original price of the car, and r is the rate of depreciation.

Solve the formula for r .

Raj bought a car 4.5 years ago for $25,000, and the current value of the car is $12,000. At what percentage rate has the car depreciated? Round your answer to the nearest whole number.

Question

Please help! Fan and Medal!The value of a car after t years can be found using the formula V = C(1 - r)^t, where V is the current value of the car, C is the original price of the car, and r is the rate of depreciation.

Solve the formula for r .

Raj bought a car 4.5 years ago for $25,000, and the current value of the car is $12,000. At what percentage rate has the car depreciated? Round your answer to the nearest whole number.

anonymous · Answer

v=c(1-r)^t
take ln for both sides

anonymous · Answer

i really dont know how to do that @AJ01

anonymous · Answer

If I did it right, the equation should be 25,000=12,000(1-r)^4.5
Then just solve for r!