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22 June, 08:44

A quarter-pound fast-food hamburger sandwich provides 400 calories and contains 20 grams of fat. what is the percentage of calories from fat? a quarter-pound fast-food hamburger sandwich provides 400 calories and contains 20 grams of fat. what is the percentage of calories from fat?

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  1. 22 June, 10:28
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    Fat has 9 calories per gram. If you have 20 grams of fat, this equals:

    9 calories per gram x 20 gram = 180 calories.

    You calculate the percentage like this:

    180 calories / 400 calories = 0,45

    0,45 x 100 = 45%

    45 percent of the 400 calories comes from fat.
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Home » Biology » A quarter-pound fast-food hamburger sandwich provides 400 calories and contains 20 grams of fat. what is the percentage of calories from fat? a quarter-pound fast-food hamburger sandwich provides 400 calories and contains 20 grams of fat.
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