math problem
2008-08-18 10:44 am
If the average of x, y, and 80 is 6 more than the average of y, z, and 80, what is the value of x-z ?
回答 (1)
2008-08-18 2:06 pm
✔ 最佳答案
The answer is as follows:圖片參考：http://i277.photobucket.com/albums/kk75/uncle_michael/080818_mat_1.jpg?t=1219010755
收錄日期: 2021-04-23 23:06:18
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080818000051KK00309