the average (arithmetic mean) of x,y,z,5,and 7 is 8 还是这个问题

the average (arithmetic mean) of x,y,z,5,and 7 is 8 还是这个问题 if the average (arithmetic mean) of x,y,z,5,and 7 is 8,which If w = x + y + z,what is the average (arithmetic mean) of w, 英语翻译If w=x+y+z,what is the average(arithmetic mean) of w,x,y 1.If the average (arithmetic mean) of 3,8,and w is greater t 这是陈向东练习册里P134第23题：It the average (arithmetic mean) of x,y,z, If the average(arithmetic mean)of 7 consecutive numbers is 1 The average (arithmetic mean) of a list of numbers is what p What is the average (arithmetic mean) of all the multiples o If the average(arithmetic mean) of 11 numbers,each of which 英语写的数学题 急12.The average (arithmetic mean) of three consecuti The average of p,q,r is4,and average number of p,q,r,x is 5,