Question

Buna ! Ajutati-ma va rog cu acest ex.
Calculati media aritmetica a numerelor a,b,c unde :
a=5,69+1,25ori8,17-2,613:0,3
b=29,34ori (6,305-5,427) - 0,00032
c=5ori 0,69-1,3:4+0,65ori 0,4-0,72:9
Ajutati-ma va rog frumoosss ! Va rog !
De ce nu ma ajutati ?

Answer 1

a=5,69+1,25*8,17-2,613:0,3
 =5,69+10,21-8,71
 =15,9-8,71
 =8,09

b=29,34*(6,305-5,427) - 0,00032
 =29,34*0,878-0,00032
 =25,76

c=5*0,69-1,3:4+0,65*0,4-0,72:9
 =3,45-0,32+0,26-0,08
 =3,13+0,18
 =2,95

$ma= \frac{a+b+c}{3}$
$ma= \frac{8,09+25,76+2,95}{3}$

ma=12,2666666667