Using the table on the left, calculate the total kilocalories for the meal (rounding off the kilocalories to the tens place).
Express the energy to two significant figures and include the appropriate units
Proteins(g)- 47,4,10
Carbohydrates(g) - 49,47,76
Fats(g)- 40,13,10
To calculate the total kilocalories for the meal, we need to multiply the grams of each macronutrient by its corresponding calorie value:
Proteins(g) - 47 g * 4 kcal/g = 188 kcal
Carbohydrates(g) - 49 g * 4 kcal/g = 196 kcal
Fats(g) - 40 g * 9 kcal/g = 360 kcal
Now, we can add up the kilocalories from each macronutrient to get the total:
Total kilocalories = 188 kcal + 196 kcal + 360 kcal = 744 kcal
Rounding off to the tens place, the total kilocalories for the meal is approximately 740 kcal.
So, the total kilocalories for the meal is 740 kcal.
To calculate the total kilocalories for the meal, we need to multiply the grams of proteins, carbohydrates, and fats by their respective caloric values and then sum them up:
1. Proteins:
- 47 grams * 4 kcal/gram = 188 kcal
- 4 grams * 4 kcal/gram = 16 kcal
- 10 grams * 4 kcal/gram = 40 kcal
Total calories from proteins = 188 kcal + 16 kcal + 40 kcal = 244 kcal
2. Carbohydrates:
- 49 grams * 4 kcal/gram = 196 kcal
- 47 grams * 4 kcal/gram = 188 kcal
- 76 grams * 4 kcal/gram = 304 kcal
Total calories from carbohydrates = 196 kcal + 188 kcal + 304 kcal = 688 kcal
3. Fats:
- 40 grams * 9 kcal/gram = 360 kcal
- 13 grams * 9 kcal/gram = 117 kcal
- 10 grams * 9 kcal/gram = 90 kcal
Total calories from fats = 360 kcal + 117 kcal + 90 kcal = 567 kcal
Finally, to calculate the total kilocalories for the meal, we add up the calories from proteins, carbohydrates, and fats:
Total kilocalories = 244 kcal + 688 kcal + 567 kcal = 1,499 kcal
Therefore, the total kilocalories for the meal is 1,499 kilocalories (rounded to the tens place).