Answer:
which one of two machines to acquire given equal machine lives but unequal machine costs.
Explanation:
equivalent annual cost (EAC) is used in determining which investment to make when the investments have different life spans.
When investments have different life spans, the net present value(NPV) cannot be used in making decisions on investment.
EAC= [tex]\frac{rNPV}{1-\frac{1}{(1+r)^n} }[/tex]
where r = interest rate
n = number of years
The decision rule is to invest in the investment with the higher EAC