The average (arithmetic mean) of a set of n numbers is 19. If the average of the 6 greatest numbers in the set is 29 and the ave

Question

3 years ago

6

rage of the remaining numbers is 7, what is the value of n?

2 answers:

e-lub [12.9K] · Answer 1 · 2022-02-01T03:45:22+03:00

Answer:

11

Step-by-step explanation:

The number of numbers whose average is 7 is (n-6), so the overall equation for the average of the numbers in the set is ...

(7(n-6) +6(29))/n = 19

7n +132 = 19n . . . . multiply by n, collect terms

132 = 12n . . . . . . . . subtract 7n

11 = n . . . . . . . . . . . divide by 12

The value of n is 11.

DanielleElmas [232] · Answer 2 · 2022-02-01T05:56:53+03:00

4 0

Answer:11

Step-by-step explanation: