Asked by leah
The mean of a set of twelve numbers is 5.5. The mean of another set of eight numbers is k. The mean of the combined set of 20 numbers is 8.5. Find the value of k
Answers
Answered by
Steve
total of 1st set is 12*5.5
total of 2nd set is 8k
total of two sets is 20*8.5
so, you have
12*5.5 + 8k = 20*8.5
k = 13
total of 2nd set is 8k
total of two sets is 20*8.5
so, you have
12*5.5 + 8k = 20*8.5
k = 13
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.