Question

Ex.35 !!!vă rog frumos!!!!

Answer 1

$a + b + c = \\ a =17 + 5 = 22 \\ b = 17 + 5 + 7 = 29 \\ c = 17 + 5 + 7 + 2 = 31 \\22 + 29 + 31 = 82 \\ suma \: totala = 82$

Answer 2

Răspuns

155 probleme in total

Explicație pas cu pas:

primul copil      = 17+(17+5)=17+22=39 probleme in 2 zile

al doilea copil  = 17+(17+5+7)=17+29=46 probleme in 2 zile

al treilea copil  = 17+[(17+5)+(17+5+7)+2]=17+[22+29+2]=17+53=70 probleme in 2 zile

39+46+70=155 de probleme in total