Register
The mean of 6 numbers is 10. Another number is added and the mean is now 11. What number was added?
218k views
17 votes
The mean of 6 numbers is 10.

Another number is added and the mean is now 11.
What number was added?

User Derek Gebhard
by
3.6k points

1 Answer

11 votes

Answer:

17

Explanation:


(10 + 10 + 10 + 10 + 10 + 10 + x)/(7) = 11

60 + x = 77

x = 77-60

x = 17

User Elijaheac
by
5.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.5m questions

5.9m answers

Other Questions

Before beginning voice lessons, Aubrey already knew how to sing 357 pieces, and she expects to learn 2 new pieces during each week of lessons. After 78 weeks of voice lessons, how many pieces will Aubrey
A study was completed in Florida. In southern Florida, the study involved 3,000 patients; 54% of them experienced flulike symptoms during the same month. The study had a margin of error of 1.8%. What does
3x-by=-3 b=? what is the number of b? ​
Please answer asap.......... ...
What value of x makes the following true? 2(x + 10) = 4( 2x - 1)
Link Copied!