How many kcal of energy does the cheeseburger contain if it has 19 grams of fat 20 grams of carbohydrate and 28 grams of protein?

To calculate the total kcal in the cheeseburger, you can use the caloric values of macronutrients: fat provides 9 kcal per gram, carbohydrates provide 4 kcal per gram, and protein provides 4 kcal per gram.

Calculating each component:

• Fat: 19 g × 9 kcal/g = 171 kcal
• Carbohydrates: 20 g × 4 kcal/g = 80 kcal
• Protein: 28 g × 4 kcal/g = 112 kcal

Adding these together gives: 171 + 80 + 112 = 363 kcal. Thus, the cheeseburger contains approximately 363 kcal of energy.