Question

Qual a média aritmética dos números.
a)4;6 e 8
b)1/2; o, 1; 2
c)3/8; 2/5; 4/9

Answer 1

Bom dia Edneuza

a)  m = (4 + 6 + 8)/3 = 18/3 = 6

b)  m = (1/2 + 1 + 2)/3 = (1/2 + 2/2 + 4/2)/3 = 7/6 

c) m = (3/8 + 2/5 + 4/9)/3 = (135 + 144 + 160)/(3*360) = 439/1080 = 0.4064