Question

Exercising causes an athlete’s body to lose potassium, and it is important to replenish this nutrient after a race.

For middle-school students, the recommended amount of potassium intake is 4.5 grams per day. If a student athlete eats a banana containing 0.54 grams of potassium, and drinks 6 ounces of orange juice containing 0.372 grams of potassium, how many more grams of potassium does she need?

How can you find how many more grams of potassium the athlete needs to reach the recommended amount?

To solve this problem, I would
subtract 4.5 – 0.372 and then add 0.54 to the difference
.

Answers

GPT-4o mini
It looks like you have a good starting point, but let's clarify the steps to correctly find out how much more potassium the athlete needs to reach the recommended amount.

1. **Find the total potassium consumed**: First, add the potassium from the banana and the orange juice together.
- Potassium from the banana: 0.54 grams
- Potassium from the orange juice: 0.372 grams

Total potassium consumed = 0.54 + 0.372

2. **Calculate the total**:
- Total potassium consumed = 0.54 + 0.372 = 0.912 grams

3. **Determine the recommended intake**: The recommended amount of potassium is 4.5 grams.

4. **Find how much more potassium is needed**: Subtract the total potassium consumed from the recommended intake.
\[
\text{Potassium needed} = 4.5 - 0.912
\]

5. **Calculate the difference**:
- Potassium needed = 4.5 - 0.912 = 3.588 grams

So, the athlete needs **3.588 grams** more potassium to reach the recommended amount.

To summarize:
1. Add the potassium from the banana and orange juice.
2. Subtract that total from the recommended intake to find out how much more potassium is needed.

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