A taco from a fast food restaurant contains 7.0 g of fat, 25. g of carbohydrate, and 11 g of protein. How many kJ of energy does the cheeseburger contain? (The caloric values for foods are 38 kJ/g for fat, 17 kJ/g for
Carbohydrate, and 17 kJ/g for protein.)Round off the answer for each food type to the tens place.

Question

Quizplus · Accepted Answer

To calculate the energy in kJ, we need to multiply the amount of each macronutrient (in grams) by its caloric value (in kJ/g) and then add up the results.

For fat: 7.0 g * 38 kJ/g = 266 kJ (rounded to the tens place)
For carbohydrate: 25. g * 17 kJ/g = 425 kJ
For protein: 11 g * 17 kJ/g = 187 kJ

Total energy = 266 kJ + 425 kJ + 187 kJ = 878 kJ (rounded to the tens place)

Therefore, the best choice is B, which is the closest to our calculated answer of 878 kJ.

A Taco from a Fast Food Restaurant Contains 7