Math aka Savvas

Question

four glasses of milk and 2 snack bars have a total of 76 carbohydrates​ (carbs), and 2 glasses of milk and 3 snack bars have a total of 66 carbs. Determine how many carbs are in one glass of milk and in one snack bar.

Answer 1

4g + 2s = 76

2g + 3s = 66

4g +6s = 132

4g +2s = 76

subtract

4s = 56

s = 56/4 = 14

2g + s = 38

2g + 14 = 38

2g = 38-14 = 24

g = 24/2 = 12

s +g = 14+12 = 26