Question

A food contains 1.1 grams carbohydrates, 13 grams protein, and 11 grams fats. how many calories does the food provide?

Answer 1

Answer is 155.4 total calories.

Step by step.
We know Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.

So (1.1 x 4) + (13 x 4) + (11 x 9) = total calories.
4.4 + 52 + 99 = 155.4 total calories.