Answer
Carbohydrate: $500kcal$
Fat: $340 kcal$
Protein: $80 kcal$
Work Step by Step
Carbohydrate:
According to the table 3.7 (Page 71), each g of carbohydrate gives 4 kcal.
Calculate the total mass of carbohydrates:
29 g+51 g+44 g=124 g(Carbohydrate)
Find the total energy: $124g \times \frac{4kcal}{1g} = 496kcal$
Don't forget to round off the numbers to the tens place: 500kcal.
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Fat:
According to the table 3.7 (Page 71), each g of fat gives 9 kcal.
Calculate the total mass of fat: 10.g+ 0g+ 28 g=38 g(Fat)
Find the total energy: $38g \times \frac{9kcal}{1g} = 342 kcal$
Don't forget to round off the numbers to the tens place: 340kcal.
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Protein:
According to the table 3.7 (Page 71), each g of protein gives 4 kcal.
Calculate the total mass of protein: 13 g+ 0 g+ 8 g= 21 g(Protein)
Find the total energy: $21 g \times \frac{4kcal}{1g} = 84 kcal$
Don't forget to round off the numbers to the tens place: 80kcal.