Question

a grocery store sells four different jars of peanut butter. determine which is the best buy, based on the cost per unit. 14 ounces for $1.65 24 ounces for $2.69 32 ounces for $3.42 38 ounces for $3.50 which size jar is the best buy?
□ ounces

Explanation:

Step1: Calculate cost per ounce for 14 oz

To find cost per ounce, divide price by ounces. For 14 ounces at $1.65: $\frac{1.65}{14} \approx 0.1179$ dollars per ounce.

Step2: Calculate cost per ounce for 24 oz

For 24 ounces at $2.69: $\frac{2.69}{24} \approx 0.1121$ dollars per ounce.

Step3: Calculate cost per ounce for 32 oz

For 32 ounces at $3.42: $\frac{3.42}{32} \approx 0.1069$ dollars per ounce.

Step4: Calculate cost per ounce for 38 oz

For 38 ounces at $3.50: $\frac{3.50}{38} \approx 0.0921$ dollars per ounce.

Step5: Compare the costs

Compare the four unit costs: 0.1179, 0.1121, 0.1069, 0.0921. The smallest is for 38 ounces.

Answer:

38