kellimcollier1751 kellimcollier1751
  • 15-02-2021
  • Mathematics
contestada

The mean of a set of 6 integers is 30. When one of the numbers is removed, the new mean is

34. What was the number that was removed?

A

Four

B.

Five

С

Eight

D

Ten

Respuesta :

tutorAnne
tutorAnne tutorAnne
  • 17-02-2021

Answer: The number that was removed was Ten--- d

Step-by-step explanation:

Step 1

Mean = Sum of integers/ number of integers

30 = X / 6

Sum of the integers= 180

Step 2

Let n be the number that was removed , so that

Mean = Sum of integers/ number of integers sum  will now be written as

34=  180-n /  5

170 = 180-n

n = 180 -170

n= 10

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