a slice of bread has 1.5 g of fat, 19 g carbohydrate and 4 g protein. how many kcal in the slice? please show all of you work in a dimension

Question

a slice of bread has 1.5 g of fat, 19 g carbohydrate and 4 g protein. how many kcal in the slice? please show all of you work in a dimensional analysis format.

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Madelyn 2 weeks 2021-09-12T09:44:20+00:00 1 Answer 0

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    2021-09-12T09:45:34+00:00

    Answer:

    The answer is 105.5 kcal/slice of bread.

    Step-by-step explanation:

    The kcal per gram of:

    • protein = 4kcal/g.
    • carbohydrate = 4kcal/g.
    • fat = 9kcal/g.

    Now, you have:

    • 1.5 g of fat + 19g of carbohydrate + 4g of protein = 1 slice of bread.

    If we multiply the amount of components by his kcal:

    • 1.5g * 9kcal/g + 19g * 4kcal/g + 4g * 4kcal/g;

    Now gram/gram = 1, and we can cancel the grams in the equation:

    • 1.5* 9kcal + 19 * 4kcal + 4 * 4kcal = 105.5kcal;

    Finally, the result of the kcal of the slice bread is:

    • 105.5 kcal/slice of bread.

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