Răspunsuri

2014-02-24T19:41:39+02:00
Cu metoda figurativa poti rezolva
un segment(a) reprezinta nr timbrelor pe care le are Radu
Marius are 4a iar Irina a+30
a+4a+a+30=750
6a=750-30
6a=720
a=720÷6=120 timbre are Radu
Marius are 120×4=480 iar Irina are 120+30=150