Question

Calculaţi media aritmetica a nr.:
x=(12,1-11,9):4+4,5 si y=[(2,3+1,5)•12,5]:(2,05-1,25)

Answer 1

x=4,55
y=3 (le calculezi)

ma=4,55 + 3 /2
ma=7,55/2
ma=3,775

Answer 2

x=(12,1-11,9):4+4,5 =0,2:4+4,5 =0,05+4,5=5
y=[(2,3+1,5)•12,5]:(2,05-1,25)=(3,8•12,5):0,8=47,5:0,8=59,375

(x+y)/2=(5+59,375)/2=64,375/2=32,1875