[Video] Q6: A company that makes wildlife videos purchases camera equipment for $32,400. the equipment depreciates in value at a constant rate for 12 years, after which it is considered to have no monetary value. how much is the camera equipment worth 4 years after it is purchased?

Explanation for Question 6 From the Math (No Calc) Section on the Official Sat Practice Test 7

Question six says a company that makes wildlife videos, 2 purchases, camera equipment for $32,400. 3 The equipment depreciates in value at a constant rate for 12 years 4 after which it is considered to have no monetary value. 5 How much is the camera equipment worth four years after it is purchased? 6 So we know that the original value of this equipment is $32,400. 7 And that for 12 years, that increased at a constant rate. 8 I'm going to represent that rate by X. 9 And after that amount of time, it was worth $0. 10 So we can use this equation that I've just set up to solve for 11 X the value at which this equipment's value depreciates, 12 and then plug in four instead of 12 here and solve to find what 13 that value would be four years after it's purchased. 14 So first I'm just going to add 12 X to both sides, 15 and then I'm going to divide both sides by 12.