标题: og12-23 数学DATA题 [打印本页] 作者: cyang16 时间: 2009-11-24 23:59 标题: og12-23 数学DATA题 The profit from the sale of a certain appliance
increases, though not proportionally, with the number of units sold. Did the prot exceed $4 million on sales of 380,000 units? 1) The prot exceeded $2 million on sales of 200,000 units. 2) The prot exceeded $5 million on sales of 350,000 units. 答案是B,这道题的意思不是很明白!怎么入手?作者: bqu002 时间: 2009-11-25 00:33
知道利润会随着销售的增长而增长,但是不成比例。问卖了380000是否利润过4百万?