Craig bought a treadmill for $400. He estimates that the annual costs to maintain the machine will be $36. Which rational functi
2 answers:
Given that Craig bought a treadmill for 400 dollars.
Useful life of the macine = x
Hence annual purchase cost spread over x years will be 400/x per year.
In addition, there is an annual maintenance cost of 36 dollars.
Hence Average annual cost in dollars = purchase cost per year+maintenance cost per year
=
Hence answer for rational function is
either
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