I need help with the explanation for this assignments ,thank you ! 1 -A meal consisting of a cheeseburger, large fries, and a chocolate shake provides a total of 1120 kcal. If 40% of total kcal in this meal come from fat, how many grams of fat are in this meal? A) 64 gramsB) 112 gramsC) 448 gramsD) 50 grams 2-A serving of breakfast cereal provides 160 total calories and 8 grams of added sugars. Added sugars provide ______ of total kcal in this breakfast cereal. A) 45%B) 20%C) 5%D) 35%
To determine the grams of fat in the meal, we first need to find out how many calories come from fat. We know that 40% of the total calories in the meal come from fat, and the total calories provided by the meal are 1120 kcal.
Step 1: Calculate the calories from fat:
Calories from fat = Total calories × Percentage of calories from fat
Calories from fat = 1120 kcal × 0.40 (40% as a decimal)
Calories from fat = 448 kcal
Step 2: Calculate the grams of fat:
To do this, we need to know that 1 gram of fat provides approximately 9 calories.
Grams of fat = Calories from fat ÷ Calories per gram of fat
Grams of fat = 448 kcal ÷ 9 kcal/gram (approximate)
Grams of fat ≈ 49.78 grams
Therefore, there are approximately 50 grams of fat in the meal.
Answer: D) 50 grams
To find the percentage of total calories in the breakfast cereal that comes from added sugars, we’ll use the information provided: the cereal provides 160 total calories and 8 grams of added sugars.
Step 1: Calculate the calories from added sugars:
Since 1 gram of sugar provides approximately 4 calories, we can calculate the calories from added sugars as follows:
Calories from added sugars = Grams of added sugars × Calories per gram of sugar
Calories from added sugars = 8 grams × 4 kcal/gram
Calories from added sugars = 32 kcal
Step 2: Calculate the percentage of calories from added sugars:
Percentage of calories from added sugars = (Calories from added sugars ÷ Total calories) × 100%
Percentage of calories from added sugars = (32 kcal ÷ 160 kcal) × 100%
Percentage of calories from added sugars = (0.20) × 100%
Percentage of calories from added sugars = 20%
Answer: B) 20%
Therefore, added sugars provide 20% of the total kcal in this breakfast cereal.
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