Problema Solution

three glass of milk and 2 snack bar have a total of 56 carbohydrate(carbs), and two glass of milk and 3 snack bar have a total of 54 carbohydrate (carb).

find how many carb is in one glass of milk and one snack bar?

Answer provided by our tutors

let


m = the carbs in 1 glass of milk

s = the carbs in 1 snack bar


3 glass of milk and 2 snack bar have a total of 56 carbohydrate(carbs)


3m + 2s = 56


2 glass of milk and 3 snack bar have a total of 54 carbohydrate (carb)


2m + 3s = 54


by solving the system of equations


3m + 2s = 56

2m + 3s = 54


we find


m = 12 carbs


s = 10 carbs


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1 glass of milk has 12 carbs and a snack bar has 10 carbs.