Salut,
[tex]T_{medie}=\dfrac{2\cdot (-16^{\circ})+1\cdot (-10^{\circ})+5\cdot (-14^{\circ})+8\cdot (-1^{\circ})+4\cdot (-5^{\circ})+2\cdot (-1^{\circ})+9\cdot 2^{\circ}}{2+1+5+8+4+2+9}=\\\\=\dfrac{-124^{\circ}}{31}=-4^{\circ}\ C.\ A\ fost\ greu\ ?\\\\P.S.\ Nu\ dai\ 20\ de\ puncte,\ dai\ doar\ 10+5\ puncte.[/tex]
Green eyes.
