If the average (arithmetic mean) of x, y, and z is 20, which of t

您还没有登录，登录以后才可以查看答疑和进行提问。

试题详情

If the average (arithmetic mean) of x, y, and z is 20, which of the following is the value of z in terms of x and y?

A、20 - x - y
B、20 + x + y
C、40 - x - y
D、40 + x + y
E、60 - x - y

答案：E

专业教师答疑

最新

提问

还没有人问到这里。

问个问题

答疑小程序

最热提问

Problem Solving
Which of the following is a prime factor of 1,554?......
Numeric Entry
What is the least integer value of n such that $$\......
Text Completion
It is a paradox of the Victorians that they were b......
Text Completion
While the writer was best known for her much-bally......
Text Completion
Contrary to those who fear the impact of invasive ......
Sentence Equivalence
Scientist reported last month on a sign of relativ......
Reading Comprehension
The author of the passage objects to criticism of ......
Problem Solving
A fruit, stand sells two varieties of apples at $1......