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题目内容双击单词支持查询和收藏哦～
The average (arithmetic mean) of a set of mean daily temperatures for x days is 70 degrees. When a mean daily temperature of 75 degrees is added to this set, the average increases to 71 degrees.
Quantity A
x
Quantity B
5
B显示答案
以上解析由 考满分老师提供。
