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    total calories in a slice of bread

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    Estimate the total calories in a slice of bread that has 9.0 g of carbohydrates, 2.0 g of protein, and 1.0 g of fat. What percentage of total calories is from fat?

    If 4.0kcal/g for proteins and carbohydrates
    If 9.0kcal/g for fats

    1 kcal = 1 Cal = 1000 cal = 4.18 J

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    Solution Preview

    In a slice of bread:
    The calories from the carbohydrates are:
    4.0 kcal/g * 9.0g = 36 ...

    Solution Summary

    The solution calculates the total calories in a slice of bread.