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A new car is purchased for $45, 000 and over time its value depreciates by one half
every 3.5 years. What is the value of the car 17 years after it was purchased, to the
nearest hundred dollars?

Respuesta :

17/3.5=34/7 or 4.857 45,000x1/2^34/7= 1552.625…. =>1500 nearest hundred dollars. The way this works is say 7 years passed so the value halved twice, you’d do 45,000x1/2=22500 and then 22500x1/2=11250 you can write this as 45,000x1/2x1/2 or rewrite this as 45,000x1/2^2

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