En un estacionamiento hay 55 vehículos entre coches y motos. Si el total de ruedas es de 170. Cuantos coches y cuantas motos hay?
Accepted Solution
A:
Let [tex]x[/tex] be the number of cars (coches) and [tex]y[/tex] the number of motorbikes (motos). We know that sum of cars and motorbikes is 55, so: [tex]x+y=55[/tex] equation (1) We can infer that the a car has 4 wheels and a motorbike has 2 wheels.Since the total number of wheels is 170, the sum of the car's wheels and the motorbike's wheels is 170: [tex]4x+2y=170[/tex] equation (2)
Solving for [tex]x[/tex] in equation (1): [tex]x+y=55[/tex] [tex]x=55-y[/tex] equation (3)