Hello, Rich5553!

A parking lot attendant counted 50 vehicles on the lot consisting of 4-wheel, 3-wheel, and 2-wheel vehicles.

She counted a total of 192 tires and noted that the number of 4-wheel vehicles was 9 times the total of other vehicles on the lot.

Use a system of equations and matrices to determine how many of each type of vehicle was on the lot.

Let: .

We are given three facts: .

We have this system of equations: .

The matrix is: .

Go for it!

You should get