Question

Question #ea8ea

Answer 1

The orange juice contains 120 kcal.

Explanation:

The energy content of food is 4 kcal/g carbohydrate and 4 kcal/g protein.

Therefore, the energy content of the orange juice is

`29 color(red)(cancel(color(black)("g carbohydrate"))) × "4 kcal"/(1 color(red)(cancel(color(black)("g carbohydrate")))) + 2 color(red)(cancel(color(black)("g protein"))) × "4 kcal"/(1 color(red)(cancel(color(black)("g protein")))) = "116 kcal + 8 kcal" = "120 kcal"`