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To solve the problem from the image, we need to calculate the grams of potassium in **29.85 kg** of apples, given the following dataTo solve the problem from the image, we need to calculate the grams of potassium in **29.85 kg** of apples, given the following 

- **Potassium content per apple** = 159 mg.
- **3 apples per pound (lb)**.
- **29.85 kg of apples**.

We can break this down into steps:

### Step 1: Convert kilograms to pounds.
- \( 1 \, \text{kg} = 2.20462 \, \text{lb} \)
- \( 29.85 \, \text{kg} \times 2.20462 \, \text{lb/kg} = 65.819 \, \text{lb} \)

### Step 2: Calculate the number of apples in 29.85 kg.
- Given that there are 3 apples per pound:
- \( 65.819 \, \text{lb} \times 3 \, \text{apples/lb} = 197.457 \, \text{apples} \)

### Step 3: Calculate the total potassium content.
- Each apple contains 159 mg of potassium, so for 197.457 apples:
- \( 197.457 \, \text{apples} \times 159 \, \text{mg/apple} = 31,391.663 \, \text{mg} \)

### Step 4: Convert milligrams to grams.
- \( 1 \, \text{g} = 1000 \, \text{mg} \)
- \( 31,391.663 \, \text{mg} = 31.392 \, \text{g} \)

### Final Answer:
There are approximately **31.39 grams of potassium** in **29.85 kg** of apples, keeping the correct significant figures.

Would you like more details or have any questions about the steps? 

Here are five related questions to deepen your understanding:
1. How would the calculation change if the potassium content per apple was slightly different?
2. What would be the potassium content if you had 50 kg of apples?
3. How can you express this result in other units, such as milligrams or micrograms?
4. What are the effects of significant figures in nutritional calculations?
5. How could you verify the potassium content in different varieties of apples?

**Tip:** Always ensure you're using consistent units when calculating large quantities—especially when converting between systems like pounds and kilograms!

Nutritional tables give the potassium content of a standard apple as 159 mg. There are about 3 apples per pound (lb). How many grams of potassium are in 29.85 kg of apples?

Learn how to calculate the potassium content in 29.85 kg of apples. This problem involves unit conversion (kg to lb), calculating the number of apples per pound, and finding the total potassium in grams. Suitable for students in Grades 9-11.

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