Question

suma a 3 nr este 2,7.aflati media lor aritmetica

Answer 1

$m_{a}= \frac{x+y+z}{3} = \frac{2,7}{3}=0,9$

Answer 2

Notam numerele cu a, b si c.

(a+b+c):3=
=2,7:3=
=0,9

sau poti face asa:
$\frac{a+b+c}{3} =$
$= \frac{2,7}{3} =$
=0,9