Question

could someone help me with this? its exponential decay

You won a new gaming computer worth $2500. It depreciates at a rate of 40% per year. When
will the computer be worth less than $1000?

Answer 1

i need helppp-

Answer 2

for exponential decay:

y = A(1-r)^t

where y is the final price, A is the initial price, r is the decay rate as a decimal, and t is time (in years)

plugging things in

1000 = 2500(1-0.4)^t. solve for t. in this type of situation, you would probably round t up to the nearest year because depreciation on items is usually only measured once per year.