Question

André e Bruno foram a uma lanchonete e compraram lanches e sorvetes iguais. Bruno comprou 2 lanches e 1 sorvete e pagou R$21,00. Já André comprou 3 lanches e 2 sorvetes, pagando R$33,00. Qual era o preço, em reais, de cada lanche que André e Bruno compraram nessa lanchonete? R$5,00. R$9,00. R$10,50. R$10,70.

Answer 1

the price of each snack be R $9.00

Explanation:

Let us assume the snack be x

And, the ice cream be y

Now according to the question

2x + y = $21

And,

3x + 2y = $33

Now multiply by 2 in equation 1

So,

4x + 2y = $42

3x + 2y = $33

x = 9

Hence, the price of each snack be R $9.00