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?

Question

Paola Castillo

Biology

3 November, 22:25

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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Answers (1)

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Rollie · Answer 1

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.