SOLUTION: The average of x numbers is 15. If two of the numbers are each increased by y, the new average will be increased by how much

Algebra ->  Average -> SOLUTION: The average of x numbers is 15. If two of the numbers are each increased by y, the new average will be increased by how much      Log On


   

Question 663154: The average of x numbers is 15. If two of the numbers are each increased by y, the new average will be increased by how much
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
The average of x numbers is 15.
the total of the 15 original numbers = 15x
:
If two of the numbers are each increased by y, the new average will be increased by how much?
15x+2y = total of x numbers now
Therefore
%2815x%2B2y%29%2Fx = the new average
:
Find the difference in the averages
%2815x%2B2y%29%2Fx - 15 = %2815x%2B2y-15x%29%2Fx = 2y%2Fx is the dif in average