how to figure The grams of protein in 1 cup of soup that has 98 {\rm Cal} with 6 {\rm g} of fat and 8 {\rm g} of carbohydrate

To figure out the grams of protein in 1 cup of soup, we need to know the total calories, fat content, and carbohydrate content.

Step 1: Determine the calories from fat and carbohydrates.
Since fat provides 9 calories per gram and carbohydrates provide 4 calories per gram, we can calculate the calories from fat and carbohydrates using the given information.

Calories from fat = (grams of fat) x (9 calories/gram of fat)
= 6 g x 9 calories/g
= 54 calories

Calories from carbohydrates = (grams of carbohydrates) x (4 calories/gram of carbohydrate)
= 8 g x 4 calories/g
= 32 calories

Step 2: Calculate the calories from protein.
To find the remaining number of calories (from protein) in the soup, we subtract the calories from fat and carbohydrates from the total calories of the soup.

Calories from protein = Total calories - (calories from fat + calories from carbohydrates)
= 98 calories - (54 calories + 32 calories)
= 12 calories

Step 3: Convert calories from protein to grams of protein.
Since protein provides 4 calories per gram, we can determine the grams of protein by dividing the calories from protein by 4.

Grams of protein = (calories from protein) / (4 calories/gram)
= 12 calories / 4 calories/gram
= 3 grams

Therefore, there are 3 grams of protein in 1 cup of the given soup.