数学应用题,（关于利润,成本) 商品每一次降价就能多销售一定的商品When a glass of lemonade at a lemonade stand was $o.75,400 glasses were sold.when the price was to $0.50,500 glasses were sold.Assume that the demand function
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数学应用题,（关于利润,成本) 商品每一次降价就能多销售一定的商品When a glass of lemonade at a lemonade stand was $o.75,400 glasses were sold.when the price was to $0.50,500 glasses were sold.Assume that the demand function
数学应用题,（关于利润,成本) 商品每一次降价就能多销售一定的商品
When a glass of lemonade at a lemonade stand was $o.75,400 glasses were sold.when the price was to $0.50,500 glasses were sold.Assume that the demand function is linear and that the variable and fixed costs are $0.05 and $20,respectively.
数学应用题,（关于利润,成本) 商品每一次降价就能多销售一定的商品When a glass of lemonade at a lemonade stand was $o.75,400 glasses were sold.when the price was to $0.50,500 glasses were sold.Assume that the demand function
一杯柠檬水在柠檬水摊子是O.75元,共可售出400杯.当时的价格是0.50美元,可出售500杯.假设需求函数是线性的,可变成本和固定成本分别为$0.05和$20.
需求函数：Q-500=（500-400）/（0.5-0.75）（P-0.5）=>Q=-400P+700
成本函数：C=0.05Q+20
利润函数：L=R-C=PQ-C=-400P^2+700P-(-20P+55)=-400P^2+720P-55
P=0.9(此时Q=340）时L最大,Lmax=269
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