Final answer:
The unit rate of a family size jar of peanut butter weighing 40 oz and costing $7.60 is $0.19 per ounce.
Step-by-step explanation:
The student is asking for the unit rate of a family size jar of peanut butter that weighs 40 ounces and costs $7.60. To calculate the unit rate, divide the total cost of the item by the total number of units (in this case, ounces).
Here is the calculation for the unit rate of the peanut butter:
- Divide the total cost by the number of ounces:
$7.60 ÷ 40 oz = $0.19 per oz
Therefore, the unit rate of the family size peanut butter is $0.19 per ounce.