Question

the ave. of X numbers is 5. If Y is added to each number, the ave. will be?

Answer 1

Hi moongazer,

Average is sum/number, if you increase sum by 5y and divide by 5, then average is 5+y.

Answer 2

\[\sum_{i}^{X}/X =5\]
adding y

\[\sum_{i}^{X}/X +y =5+y\]

hence average = 5 +y

Answer 3

waT?

Answer 4

where did you get 5y?

Answer 5

5 numbers, 5 y's.

Answer 6

you are correct but i can't understand how this works

Answer 7

You added a y to each number and there are 5 numbers so 5y.

Answer 8

could you give example?

Answer 9

Example of what?

Answer 10

1+2+3 = 6, 1+y +2 +y +3 +y = 6 +3y

Answer 11

ohh ok thanks

Answer 12

how did you get 5+y?