A cheeseburger from a fast food restaurant contains 19 g of fat,20 g of carbohydrate,and 28 g of protein.How many kcal of energy does the cheeseburger contain? (The caloric values are: 4 kcal/g for carbohydrate,9 kcal/g for fat,and 4 kcal/g for protein.)Give the answer to 2 significant figures.

Question

Quizplus · Accepted Answer

We need to calculate the total energy content (in kcal) of the cheeseburger. To do this, we need to calculate the energy contribution from each macronutrient:

Fat: 19 g x 9 kcal/g = 171 kcal
Carbohydrate: 20 g x 4 kcal/g = 80 kcal
Protein: 28 g x 4 kcal/g = 112 kcal

Total energy content = 171 + 80 + 112 = 363 kcal

Rounding this to 2 significant figures gives us a final answer of 360 kcal. Therefore, the correct choice is B.

A Cheeseburger from a Fast Food Restaurant Contains 19 G