A grocery store sells four different jars of peanut butter. Determine which is the best buy, based on the cost per unit.
16 ounces for $2.00
26 ounces for $2.73
22 ounces for $2.33
36 ounces for $3.31
To determine the best buy based on the cost per ounce, we need to calculate the price per ounce for each jar of peanut butter by dividing the total price by the number of ounces. Let's do this calculation for each option:
1. 16 ounces for $2.00:
Cost per ounce = $2.00 / 16 ounces = $0.125 per ounce
2. 26 ounces for $2.73:
Cost per ounce = $2.73 / 26 ounces = $0.105 per ounce
3. 22 ounces for $2.33:
Cost per ounce = $2.33 / 22 ounces = $0.1059 per ounce
4. 36 ounces for $3.31:
Cost per ounce = $3.31 / 36 ounces = $0.0919 per ounce
Now that we have the cost per ounce for each option, we can compare them. The best buy would be the one with the lowest cost per ounce:
1. 16 ounces: $0.125 per ounce
2. 26 ounces: $0.105 per ounce
3. 22 ounces: $0.1059 per ounce
4. 36 ounces: $0.0919 per ounce
The 36-ounce jar is the best buy at approximately $0.0919 per ounce.