Question

Daryl is counting calories to manage his weight. For lunch he ate 45 grams of carbohydrates, 22 grams of protein and 16 grams of fat. How many calories did he consume?
Responses

83 calories
83 calories

332 calories
332 calories

412 calories
412 calories

747 calories

Answer 1

To calculate the total calories consumed based on the amounts of carbohydrates, protein, and fat, we can use the following calorie values for each macronutrient:

- Carbohydrates: 4 calories per gram
- Protein: 4 calories per gram
- Fat: 9 calories per gram

Now, let's calculate the calories from each macronutrient:

1. **Calories from Carbohydrates**:
\[
45 \text{ grams} \times 4 \text{ calories/gram} = 180 \text{ calories}
\]

2. **Calories from Protein**:
\[
22 \text{ grams} \times 4 \text{ calories/gram} = 88 \text{ calories}
\]

3. **Calories from Fat**:
\[
16 \text{ grams} \times 9 \text{ calories/gram} = 144 \text{ calories}
\]

Now, we sum these values to get the total calorie intake:

\[
180 \text{ calories} + 88 \text{ calories} + 144 \text{ calories} = 412 \text{ calories}
\]

Therefore, Daryl consumed **412 calories** for lunch.