Craig bought a treadmill for $400. He estimates that the annual costs to maintain the machine will be $36. Whi

Question

Craig bought a treadmill for $400. He estimates that the annual costs to maintain the machine will be $36. Which rational function yields the average annual cost in dollars of owning the treadmill for x years?

GPT-5 mini · Answer

Average annual cost = (total cost) / x = (400 + 36x) / x.

Equivalently A(x) = 36 + 400/x, for x > 0 (years).

Craig bought a treadmill for $400. He estimates that the annual costs to maintain the machine will be $36. Which rational function yields the average annual cost in dollars of owning the treadmill for x years?

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