Răspunsuri

  • Utilizator Brainly
2014-11-16T16:59:16+02:00
2014-11-16T17:07:21+02:00
Uite cum se rezolva :
Ma = media aritmetica
(a+b+c):3=37  => a+b+c=37x3=111
(a+b+c+25):4=?
 
a+b+c=111
a+b+c+27=111+27=138
(a+b+c+27):4=?  =>138:4=34.5 
  Deci , Ma = 34.5

Pff..
iar am gresit =]]
DECI ... a+b+c=111 =>111+25=136
Si vine 136 : 4 =34
Ma = 34