- UID
- 611070
- 在线时间
- 小时
- 注册时间
- 2011-3-2
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
1A used car deal sold at a profit of 25% of the deal's purchase price of that car and sold another car at a loss of 20 percent of the dealer's purchase price for that car, if the dealer sold each car for $20,000, what was the dealer's total profit or loss, in dollars, for the two transaction combined? 答案是 $1000 loss 为什么啊。。。
2上个月卖了15套房子,卖出价格的平均数是150,000. 中位数是130,000 问下列说法哪个是正确的 1)至少有一套房子卖出的价格是高于165000 2)至少有一套房子卖出价格是在130000和150000之间的 3)至少有一套房子卖出价格是少于130000 答案是1) 求解法。。。万分感激 |
|