SOLUTION: How do I find the two arithmetic means between -13 and 8?

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Question 631044: How do I find the two arithmetic means between -13 and 8?
Answer by dfrazzetto(283) About Me  (Show Source):
You can put this solution on YOUR website!
There is only one arithmetic mean:
add the numbers and divide by 2 (because in this case there are 2 numbers):
mean(n1,n2) = (n1+n2)/2
m = -13 + 8 / 2 = -5/2 = -2.5