Question

Two snickers bars and one thin bar have 70 carbohydrates. Two thin bars and 1 snicker contains 35 grams of carbohydrates. How many carbohydrates does a thin bar have? How many carbohydrates does a snickers bar have?

Answer 1

• 35 grams

Explanation:

Let s be the amount of carbohydrates in snickers bar and t be the amount of carbohydrates in thin bar

Then we have below system of equations

• 2s + t = 70
• s + 2t = 35

Subtract the second equation from the doubled the first equation:

• 2(2s + t) - (s + 2t) = 2(70) - 35
• 4s - s + 2t - 2t = 140 - 35
• 3s = 105
• s = 105/3
• s = 35 g

Finding t:

• 3*25 + t = 70
• 70 + t = 70
• t = 0 g

Snickers bar has 35 grams of carbohydrates