Problema Solution
There were 32 vehicles stuck on a bridge. A city law states that only cars with 4 wheels and trucks with 6 wheels are allowed on the bridge. There were 148 tires that needed to be replaced. How many cars and trucks were involved in the incident
Answer provided by our tutors
let
c = the number of cars
t = the number of trucks
There were 32 vehicles stuck on a bridge:
c + t = 32
There were 148 tires that needed to be replaced:
4c + 6t = 148 divide both sides by 2
2c + 3t = 74
by solving the system of equations
c + t = 32
2c + 3t = 74
we find
c = 22 cars
t = 10 trucks
click here to see the step by step solution of the system of equations
there were 22 cars and 10 trucks involved in the accident.