Question

Va rog sa ma ajutati
La colindat,Alexandra,Teodor,Andrei au primit împreună 81 de nuci.Alexandra are cu 3 nuci mai multe decat Teodor,iar Teodor are cu 6 nuci mai mult decat Andrei.Cate nuci are fiecare copil?Prin metoda grafica

Answer 1

(x+3)+(x+6)+x=81
3x+9=81
3x=81-9
3x=72
x=72/3
x=24
x+3=24+3=27
x+6=24+6=30

Answer 2

Alexandra - |---|+3    }
Teodor - |---|+6          } 81 nuci
Andrei - |---|              }
 
                                                         Rezolvare :
1) 6 + 3 = 9 Surplusul de nuci
2) 81 - 9 = 72 Nuci fara surplus
3) 72 : 3 = 24 Nuci a primit Andrei
4) 24 + 3 = 27 Nuci a primit Alexandra
5) 24 + 6 = 30 Nuci a primit Teodor

Verificare : 24 + 30 + 27 = 81

Raspuns : Teodor - 30 nuci
                  Alexandra - 27 nuci
                  Andrei - 24 nuci