作者wayne45678 (小米)
看板trans_math
标题[微分] 偏经济的微分问题
时间Mon Jul 14 19:21:15 2008
a furniture showroom expects to sell 250 sofas a year.
Each sofa costs the store $300,and there is a fixed charge of $500 per order.
If it costs $100 to store a sofa for a year,how large should each order be and
how often should orders be placed to minimize inventory costs.
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