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ex 27 pag 70
VA ROG AJUTATIMA DAU COROANA !!


Ex 27 Pag 70 VA ROG AJUTATIMA DAU COROANA class=

Răspuns :

a) a+b=2,7
b+c=8,3
3a+5b+2c=2,7×3+8,3×2=8,1+16,6=24,7
b)a+b=3,08
b+c=0,55
3a+7b+4c=3,08×3+0,55×4=9,24+2,2=11,44
c)a+b=3,3
a+c=2,2
5a+3b+2c=3,3×3+2,2×2=9,9+4,4=14,3
d)a+b=43,5
a+c=1,111
5a+3b+2c=43,5×3+1,111×2=130,5+2,222=132,722
Sper ca am ajutat