UC知道英语数学题~~帮忙~
来源：百度知道 编辑：UC知道 时间：2024/09/28 14:49:50
1.if 30 percent of 40 percent of a positive number is equal to 20 percent of W percent of the same number,what is the value of W?
2.set X has numbers and set Y has y numbers. set Z consists of all numbers that are in either set Xor set Y with the exception of the k commom members(k>0).which of the following represents the number of members in set Z?
麻烦翻一下~谢谢
2.set X has numbers and set Y has y numbers. set Z consists of all numbers that are in either set Xor set Y with the exception of the k commom members(k>0).which of the following represents the number of members in set Z?
麻烦翻一下~谢谢
如果一个正数的40%的30%等于这个数的W%的20%,那么W值是多少
2.应该是集合的问题吧
集合X有 个元素,集合Y有y个元素,集合Z包含集合XY中除两集合相同的数之外的所有的数(即X并Y减X交Y),则下面哪一个反映了集合Z成员的数(即集合Z中包含几个元素)
哎呀，出题的人真是闲起来了