Answered

At Westonci.ca, we connect you with the best answers from a community of experienced and knowledgeable individuals. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

Select the correct answer.

Robert is a 15-year-old boy. His recommended dietary intake for vitamin B12, C, and E is [tex]$2.4 \mu g/$[/tex] day, [tex]$75 mg/$[/tex] day, and [tex]$15 mg/$[/tex] day, respectively. He eats a salmon fillet with one cup of boiled green beans and half a cup of fresh sliced strawberries for lunch. If the nutrient values of his meal components are as shown below, for which vitamins did Robert meet at least [tex]$75 \%$[/tex] of his recommended daily allowance?

\begin{tabular}{|l|l|l|l|}
\hline
& Vitamin B12 & Vitamin C & Vitamin E \\
\hline
salmon fillet (124 g) & [tex]$5.87 \mu g$[/tex] & 0.0 mg & 0.60 mg \\
\hline
boiled green beans (1 cup) & [tex]$0.0 \mu g$[/tex] & 12.1 mg & 0.57 mg \\
\hline
strawberries, sliced (1/2 cup) & [tex]$0.0 \mu g$[/tex] & 49.0 mg & 0.42 mg \\
\hline
\end{tabular}

A. Vitamin B12, Vitamin C, and Vitamin E

B. Vitamin B12 and Vitamin C only

C. Vitamin B12 and Vitamin E only

D. Vitamin C and Vitamin E only

E. Vitamin B12 only

Sagot :

GinnyAnswer
To determine for which vitamins Robert met at least 75% of his recommended daily allowance (RDA), we need to:

1. Calculate the total intake of each vitamin from his meal.
2. Calculate the percentage of the RDA each total intake represents.
3. Check if the percentage is at least 75%.

Given the nutrient values in his meal:

- Salmon fillet (124 g)
- Vitamin B12: [tex]\(5.87 \mu g\)[/tex]
- Vitamin C: [tex]\(0.0 mg\)[/tex]
- Vitamin E: [tex]\(0.60 mg\)[/tex]

- Boiled green beans (1 cup)
- Vitamin B12: [tex]\(0.0 \mu g\)[/tex]
- Vitamin C: [tex]\(12.1 mg\)[/tex]
- Vitamin E: [tex]\(0.57 mg\)[/tex]

- Strawberries, sliced (1/2 cup)
- Vitamin B12: [tex]\(0.0 \mu g\)[/tex]
- Vitamin C: [tex]\(49.0 mg\)[/tex]
- Vitamin E: [tex]\(0.42 mg\)[/tex]

### Step 1: Total Intake

Total Vitamin B12 intake:
[tex]\[ 5.87 \mu g + 0.0 \mu g + 0.0 \mu g = 5.87 \mu g \][/tex]

Total Vitamin C intake:
[tex]\[ 0.0 mg + 12.1 mg + 49.0 mg = 61.1 mg \][/tex]

Total Vitamin E intake:
[tex]\[ 0.60 mg + 0.57 mg + 0.42 mg = 1.59 mg \][/tex]

### Step 2: Percentage of RDA

Vitamin B12:
RDA = [tex]\(2.4 \mu g\)[/tex]

[tex]\[ \left( \frac{5.87 \mu g}{2.4 \mu g} \right) \times 100 \approx 244.58\% \][/tex]

Vitamin C:
RDA = [tex]\(75 mg\)[/tex]

[tex]\[ \left( \frac{61.1 mg}{75 mg} \right) \times 100 \approx 81.47\% \][/tex]

Vitamin E:
RDA = [tex]\(15 mg\)[/tex]

[tex]\[ \left( \frac{1.59 mg}{15 mg} \right) \times 100 \approx 10.6\% \][/tex]

### Step 3: Check if percentage ≥ 75%

- For Vitamin B12, the percentage is approximately 244.58%, which is greater than 75%.
- For Vitamin C, the percentage is approximately 81.47%, which is greater than 75%.
- For Vitamin E, the percentage is approximately 10.6%, which is less than 75%.

Thus, Robert met at least 75% of his RDA for Vitamin B12 and Vitamin C.

The correct answer is:
[tex]\[ \boxed{\text{B}} \][/tex]
We hope this information was helpful. Feel free to return anytime for more answers to your questions and concerns. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.