Question

Ex 5 va rog!Dau coroana !

Answer 1

(a+b) :2 =27/10=>a+b=54/10=27/5

(b+c) :2=23/10=>b+c=46/10=23/5

(a+c) :2=1=>a+c=2

(a+b) +(b+c) +(a+c) =27/5+23/5+2=27/5+23/5+10/5=60/5=12

2*(a+b+c)=12=>a+b+c=6

A) :Media aritmetica =a+b+c/2=6/2=3

B) :Media aritmetica =a+b+c+6/2=12+6/2=18/2=9

Media aritmetica se modifica cu 9-3=6