Răspuns :

Diana22126id

[(4*2) + (5*3) + (6*5) + (7*7) + (8*5) + (9*6) + (10*4)] : (2+3+5+7+5+6+4) =

= (8+15+30+49+40+54+40) : 32 =

= 236 : 32 =

= 7,375

Aproximat prin lipsa la sutimi: 7,3

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