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Mathematics, 05.02.2020 12:01 hilby5893

Aconstruction firm is trying to decide which of two models of a crane to purchase. model a costs $100,000 and requires $8000 per year to maintain. model b has an initial cost of $80,000 and a maintenance cost of $11,000 per year. for how many years must model a be used before it becomes more economical than b?

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