Aserving of food supplies 100 kcal from protein. based on this information, how many grams of protein are in the serving?

A 100kcalories food serving will contain 28 grams of protein.

Explanation:

1 kcal = 0.28g of protein

100 kcal = x

Cross multiply from here you have that x( 1 kcal) = (0.28g)(100 kcal)

Making "x" subject of formula we have that

X = (0.28g)(100 kcal)/ 1 kcal

Solving the equation mathematically will then give

X = 28 grams

Therefore we can conclude that 100 kcalories of protein servings will containg approximately 28 grams of protein.