To calculate the number of grams of added sugar Mario should eat per day, given that he needs 2800 total calories per day, we will follow these steps:
1. Determine the maximum percentage of daily caloric intake that should come from added sugars based on dietary guidelines. The guidelines recommend that added sugars make up less than 10% of your daily caloric intake.
2. Calculate the number of calories from sugar by multiplying Mario's total caloric intake by 10% (or 0.1):
\( \text{Calories from sugar} = \text{Total calories} \times 0.1 \)
\( \text{Calories from sugar} = 2800 \times 0.1 \)
\( \text{Calories from sugar} = 280 \)
3. Since there are 4 calories in a gram of sugar, divide the calories from sugar by 4 to convert to grams:
\( \text{Grams of sugar} = \frac{\text{Calories from sugar}}{4} \)
\( \text{Grams of sugar} = \frac{280}{4} \)
\( \text{Grams of sugar} = 70 \)
Based on this calculation, Mario should consume 70 grams of added sugar per day. This amount meets the requirement of being less than 10% of his daily caloric intake.
However, the answer "Less than 70 grams" implies that he should consume an amount lower than that. Since 70 grams is the maximum according to the guideline, which does not strictly mandate it must be lower but should not exceed 10% of calorie intake, technically the closest correct answer to how much he should consume while adhering to the recommendations would be "Less than 70 grams."
So, Mario should consume less than 70 grams of added sugar per day.
