The grocery store has bulk pecans on sale, which is great since you're planning on making 5 pecan pies for a wedding. How many pounds of pecans should you buy?
How many pecans are needed for each pie? Your recipe calls for 1 1/4 cupspecans per pie. But there is no cup measure available, only a scale.
How many pecans are in a pound? Perhaps the nutritional info from a bag of pecans would be helpful.

You will need to buy ___ pounds of pecans. Give your answer accurate to at least one decimal place.

To determine the number of pounds of pecans needed, we need to follow these steps:

1. **Convert the required amount in cups to pounds**:  
   We need to know how many cups of pecans are required and then convert that amount into pounds using the conversion factor provided by nutritional information.

2. **Calculate the total cups of pecans needed**:  
   Since the recipe calls for 1 1/4 cups of pecans per pie and 5 pies are being made, we calculate the total cups required.

3. **Use the nutritional information to find the weight equivalent**:  
   Typically, nutritional information provides a conversion between volume (cups) and weight (pounds or ounces). We will use this to find the corresponding weight in pounds.

### Step 1: Determine Total Cups Needed

For 5 pies, with each pie requiring 1 1/4 cups of pecans:

Total cups of pecans = \( 5 \times 1.25 = 6.25 \) cups

### Step 2: Conversion from Cups to Pounds

From standard nutritional information, we know:

- 1 cup of pecans roughly weighs 4 ounces.  
- 1 pound is equivalent to 16 ounces.

Thus, the conversion factor from cups to pounds is:

\( \text{Weight in pounds} = \frac{\text{Number of cups} \times 4 \text{ ounces per cup}}{16 \text{ ounces per pound}} \)

### Step 3: Calculate the Total Weight in Pounds

\( \text{Total pounds} = \frac{6.25 \times 4}{16} \)

Now, let's compute the result.You will need to buy **1.6 pounds** of pecans to make 5 pecan pies. The answer is rounded to the nearest tenth of a pound for convenience.

Do you have any questions or would you like further details on this calculation?

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Here are some related questions to explore further:

1. How many pecans are in a cup, and how does that translate to weight?
2. What is the nutritional value of pecans, and how does it vary by serving size?
3. How do you measure pecans without a cup measure, using only a scale?
4. What are some alternative ingredients or nuts that can be used in pecan pie?
5. How does the weight of chopped pecans compare to whole pecans?
6. How does the recipe change if the pecans are toasted versus raw?
7. What is the origin of pecan pie, and how has the recipe evolved over time?
8. What are some common variations of pecan pie recipes?

**Tip:** When measuring ingredients by weight, always use a kitchen scale for the most accurate results.

Learn how to calculate the amount of pecans needed for 5 pecan pies using weight conversion from cups to pounds. Follow a step-by-step guide that includes unit conversion and proportional reasoning. Suitable for Grades 6-8.

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