Question

Repede tot e in imagine. Multumesc.

Answer 1

1p = 2 × o
2 o = 2 c
2c +2 o +1p = 126
2 o +2 o + 2 o = 126
6 o = 126
o = 126 : 6 = 21 kg
p = 2 × o p = 2 × 21 = 42 kg
c = o c = 21 kg
2 × 21 + 2 × 21 + 42 = 42 + 42 + 42 = 126 kg

Answer 2

Metoda grafica

l-----l → am reprezentat printr-un segment greutatea unei oi ( masa)

l-----l-----l → cat cantareste un porc

l-----l-----l → cat 2 oi cantaresc 2 caini

_____________________________

l-----l-----l-----l-----l-----l-----l

[_____][_____][______]

2 caini + 2 oi  + 1 porc

[_____126 kg _______]

126 kg : 6 = 21 kg cantareste o oaie

2 x 21 kg = 42 kg cantareste un porc

2 x 21 = 42 kg cantaresc doi caini

42 : 2 = 21 kg cantareste un caine ( considerand ca au aceeasi greutate)

_______________________________________________________

42 kg + 21 kg + 21 kg = 84 kg → cantaresc impreuna un porc, o oaie si un caine