En el parque infantil hay una zona de aprendizaje de conducción que tiene miniautos y triciclos. Si en total hay 18 vehículos y 64 llantas, ¿cuántos miniautos y cuántos triciclos hay?

There are 6 mini cars and 12 tricycles.

Step-by-step explanation:

In the playground, there is a driving learning area that has mini cars and tricycles. If there are 18 vehicles and 64 tires in all, how many miniature cars and how many tricycles are there?

Given that there are a total of 18 vehicles in the driving learning area.

Let there are x number of the mini car,

so, the number of tricycles = 18-x

As one car has 4 tires, so the total number of car tires = 4x

As one tricycle has 3 tires, so the total number of tricycle tires = 3(18-x)

Given that the total number of tires is 60, so

4x+3(18-x) =60

4x+54-3x=60A

x=60-54=6

So, the total number of mini cars= 6

and the total number of tricycles = 18-6=12

Hence, there are 6 mini cars and 12 tricycles.

D. the circumference of the base of the cylinder.

Step-by-step explanation: