SOLUTION: The average of a set of 9 numbers is 54.if 90 and 95 are added on the set what will be the new average?
Algebra.Com
Question 1058550: The average of a set of 9 numbers is 54.if 90 and 95 are added on the set what will be the new average?
Answer by solve_for_x(190) (Show Source): You can put this solution on YOUR website!
Since the average of 9 numbers is 54, the sum of those numbers is:
54 * 9 = 486
Adding 90 and 95 to the total gives:
486 + 90 + 95 = 671
There are now 11 numbers included in the total, so the new average is:
671 / 11 = 61
Solution: 61
RELATED QUESTIONS
The average of 9 numbers is 54. If 84 and 90 are added to the set of number. what will be (answered by ikleyn)
the average of 9 numbers is 45. if 90 and 88 are added to the set of numbers, what will... (answered by ankor@dixie-net.com,greenestamps,ikleyn)
The average of 12 numbers is 54. If 65 and 85 are added to the set,what will be the... (answered by Greenfinch)
The average of 12 numbers is 54. If 65 and 85 are added to the set, what will be the... (answered by mawskittykat)
The average of a set of 6 numbers is 3.5. If the number is 4.2 is added to the set , what (answered by ikleyn,greenestamps)
The mean of a set of numbers is 500.
a. If 10 is added to each of the numbers in the... (answered by math_tutor2020)
The mean of a set of numbers is 500.
a. If 10 is added to each of the numbers in the... (answered by math_helper)
A set of 11 numbers have an average or mean of 32. If these three numbers, 89, 98, and... (answered by Fombitz)
The average (arithmetic mean) of a set of 5 numbers is 9.6. When a sixth number is added... (answered by alicealc)