Final answer:
The annual net cash inflows provided by the new dipping machines would be $51,800 per year.
Step-by-step explanation:
To determine the annual net cash inflows provided by the new dipping machine, we need to consider the cost savings from reduced labor expenses and increased production. The cost savings from reduced labor expenses would be the difference between the current labor cost of $56,000 per year and the operating cost of $9,600 per year for the new machine. So, the cost savings from reduced labor expenses would be $56,000 - $9,600 = $46,400 per year.
The increase in production by 3,000 boxes of chocolates per year would result in additional revenue of 3,000 boxes x $1.80 contribution margin per box = $5,400 per year.
Therefore, the annual net cash inflows provided by the new dipping machine would be the sum of the cost savings from reduced labor expenses ($46,400) and the additional revenue from increased production ($5,400), which is $51,800 per year.