Four friends have different numbers of cows on their farms. Jorge has 3 times as many cows as Carla. Marcus has half as many cows as Jorge. Dominique has 2 less than 4 times as many cows as Carla. How many cows does each person have if they have a total of 169 cows?

Question

Four friends have different numbers of cows on their farms. Jorge has 3 times as many cows as  Carla. Marcus has half as many cows as Jorge. Dominique has 2 less than 4 times as many cows  as Carla. How many cows does each person have if they have a total of 169 cows?

azureilai · Answer

J=3C
M=.5J
D=4C-2
J+M+D+C = 169

Those are your equations, I would recommend using substitution to solve.