Respostas

2013-10-14T00:54:31-03:00
X.2 + y.13 = 277 x=moto. y=carro
x + y = 100 --------- x = 100 - y

(100 -y)2 + 13y = 277 x=93
200 - 2y + 13y = 277
11y = 77
y=7
R: 93 motos e 7 carros
1 2 1
2013-10-14T06:46:15-03:00
7 x13 = 91
93x2 = 186

portanto 186+91 = 277