Question

A cheeseburger from Mchemistry contains 19g of fat, 20g of carbs, and 28g of protein

Answer 1

Total calories : 363 kcal

Further explanation

Complete question

A cheeseburger from a fast-food restaurant contains 19g of fat, 20g of carbs, and 28g of protein. How many kcal of energy does the cheeseburger contain?

We convert each gram of composition to kcal :

1 gram of fat = 9 kcal

1 gram of carbs = 4 kcal

1 gram of proteins = 4 kcal

• Fat

`\tt 19* 9~kcal=171~kcal`

• Carbs

`\tt 20* 4=80~kcal`

• Protein

`\tt 28* 4=112~kcal`

• Total calories

`\tt 171+80+112=363~kcal`