Question

Identify two arithmetic means between -31 and -10.

Answer 1

-31 + -10 /2 = -41/2 = -20.5 is it?

Answer 2

i dont see how there could be 2 arithmetic means >.< the arithmetic mean of two numbers (say a and b) is:
\[\frac{a+b}{2}\]
so the answer nikita posted is correct.

Answer 3

-31 , x , y, -10
2x=-31+ y ....(i)
2y = -10 + x ...........(ii)
(ii) solve for x x = 2y + 10
Substitute for x in (i)
2(2y + 10) = -31+ y
4y + 20 = -31 + y
3y = -51
y = -17

x = 2(-17) + 10 = -34+ 10 = -24
the 2 means are -24 and -17

Answer 4

Thank you very much!