Question

Question content area top
Part 1
A grocery store sells four different jars of peanut butter. Determine which is the best​ buy, based on the cost per unit.
12 ounces for ​$1.48 24 ounces for ​$2.69
26 ounces for ​$2.81 40 ounces for ​$3.76

Answer 1

To determine which jar of peanut butter is the best buy, we need to calculate the cost per ounce for each jar.

1. **12 ounces for $1.48**
Cost per ounce = \( \frac{1.48}{12} \approx 0.1233 \) dollars per ounce

2. **24 ounces for $2.69**
Cost per ounce = \( \frac{2.69}{24} \approx 0.1129 \) dollars per ounce

3. **26 ounces for $2.81**
Cost per ounce = \( \frac{2.81}{26} \approx 0.1085 \) dollars per ounce

4. **40 ounces for $3.76**
Cost per ounce = \( \frac{3.76}{40} = 0.094 \) dollars per ounce

Now, we summarize the cost per ounce for each option:
- **12 ounces:** $0.1233 per ounce
- **24 ounces:** $0.1129 per ounce
- **26 ounces:** $0.1085 per ounce
- **40 ounces:** $0.094 per ounce

The best buy is the jar with the lowest cost per ounce. Therefore, the 40-ounce jar at $3.76, with a cost of $0.094 per ounce, is the best buy.