A critical piece of operational equipment contains 30 parts of the same type. The equipment operates 24 hours a day and the critical pieces have a predicted failure frequency of 10,000 hours. Two inventory supply policies are under evaluation; one based on operational probability and the second on annual costs. If spares are procured at 90-day intervals, how many spares should be carried in the inventory to ensure a 95% probability of success?

λ = 1/10,000 = 0.0001
K λt = 30*0.0001*(90*24) = 6.48

Using figure 15.8b from the number of spares is about 11 to ensure 9% probability of success. If spares are procured as part of an EOQ policy with: cost per unit of $100, cost of preparation and shipping of $25, an estimated cost of managing an item in inventory of 25% of the inventory value, what is the order quantity and annual costs? Which policy for ordering spares would you recommend?

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The struter partnership has total partners’ equity of $510,000, which is made up of main, capital, $400,000, and frist, capital, $110,000. the partners share net income and loss in a ratio of 80% to main and 20% to frist. on november 1, adison is admitted to the partnership and given a 15% interest in equity and a 15% share in any income and loss. prepare journal entries to record the admission of adison for a 15% interest in the equity and a 15% share in any income and loss under the following independent assumptions. (1) record the admission of adison with an investment of $90,000 for a 15% interest in the equity and a 15% share in any income and loss. (2) record the admission of adison with an investment of $120,000 for a 15% interest in the equity and a 15% share in any income and loss. (3) record the admission of adison with an investment of $80,000 for a 15% interest in the equity and a 15% share in any income and loss.

Consider derek's budget information: materials to be used totals $64,750; direct labor totals $198,400; factory overhead totals $394,800; work in process inventory january 1, $189,100; and work in progress inventory on december 31, $197,600. what is the budgeted cost of goods manufactured for the year? a. $1,044,650 b. $649,450 c. $657,950 d. $197,600