Hello! I know I am really late, but anybody could use the formula to find average.
Let’s assume three numbers as x, y, and z.
Formula for average:
x + y + z
—————————
number of numbers (x, y, z = 3 numbers)
So let’s say that x + y + z = n.
n
—— = a
3
a is the average of x, y, and z.
Now I’ll show an example problem
Example: Find the average of 55, 57, and 58.
55 + 56 + 57 168
—————— = ————————— =
3 3
(150/3) + (18/3) = 50 + 6 = 56
The average of 3 numbers is 45. If one of the numbers is 43, what is the average of the other 2 numbers?
The average of 3 numbers is 45 means the total = 45 x 3 = 135? is that what u suppose to do?
If one of the numbers is 43, the total of the other two=_______________=______??
.: the average of the other two numbers=______________=________??
45*3= 43 + 2 avg solve for avg.
2 answers
Excuse me, my example problem got messed up! Hope you can understand the formula.
3 answers