Question

question 15 (5 points) a cheeseburger from a fast food restaurant contains 19 g of fat, 20 g of carbohydrate, and 28 g of protein. how many kcal of energy does the cheeseburger contain? (the accepted caloric values for foods are 4.0 kcal/g for carbohydrate, 9 kcal/g for fat, and 4 kcal/g for protein.) report the answer to 2 significant figures. 17 kcal 70. kcal 360 kcal 630 kcal 280 kcal

Explanation:

Step1: Calculate energy from fat

$19\ g\times9\ kcal/g = 171\ kcal$

Step2: Calculate energy from carbohydrate

$20\ g\times4.0\ kcal/g=80\ kcal$

Step3: Calculate energy from protein

$28\ g\times4\ kcal/g = 112\ kcal$

Step4: Calculate total energy

$171\ kcal + 80\ kcal+112\ kcal=363\ kcal$
Rounding to 2 significant - figures gives $360\ kcal$

Answer:

C. 360 kcal