pentru 3 batoane de ciocolata si 5 pachete de biscuiti, Radu a cheltuit 10,50 lei. Pentru doua batoane de ciocolata si 3 pachete de biscuiti de acelasi fel, Mara a platit 6,55 lei. Cate batoane de ciocolata se pot cumpara?
For this case, the first thing we must do is define variables: x: price for each bar of chocolate. y: price for each package of cookies. We write the system of equations: 3x + 5y = 10.50 2x + 3y = 6.55 Solving the system we have: x = 1.25 lei y = 1.35 lei Answer: Each chocolate bar costs 1.25 lei
