Question

a food contains 1.1 grams of carbohydrates, 13 grams of protein, and 11 grams of fats. How many calories does the food provide. 105.9 calories. 143 calories. 155.4 calories. 220.4 calories.

Answer 1

1 gram of fat = 9 calories
1 gram of carbohydrates = 4 calories
1 gram of protein = 4 calories

11x9 = 99
1.1x4 = 4.4
13x4 = 52

99 + 4.4 + 52 = 155.4 calories
Hope this helped!! :)

Answer 2

The right answer is 155.4 calories.

Foods bring energy to the human body. This energy is quantified as a calorie.There are three different nutrients: proteins, lipids, carbohydrates. Each gram of nutrient brings a particular amount of energy:

-1 gram of protein: 4 calories

-1 gram of fat: 9 calories

-1 gram of carbohydrate: 4 calories.

The calculation is simple to know the calorie intake of a food:

4 * 1.1 = 4.4 calories

4 * 13 = 52 calories

9 * 11 = 99 calories

4.4 + 52 + 99 = 155.4 calories.