At a supermarket, a 6-ounce bottle of salad dressing costs 1.56 A 14 ounce bottle costs 3.36 A 20-ounce bottle costs 5.60 Which is the better buy? square

To determine which bottle of salad dressing is the better buy, we need to calculate the unit price for each bottle. The unit price is the cost per ounce of the dressing.<br /><br />Let's calculate the unit price for each bottle:<br /><br />1. For the 6-ounce bottle:<br />\[ \text{Unit price} = \frac{\$1.56}{6 \text{ ounces}} = \$0.26 \text{ per ounce} \]<br /><br />2. For the 14-ounce bottle:<br />\[ \text{Unit price} = \frac{\$3.36}{14 \text{ ounces}} = \$0.24 \text{ per ounce} \]<br /><br />3. For the 20-ounce bottle:<br />\[ \text{Unit price} = \frac{\$5.60}{20 \text{ ounces}} = \$0.28 \text{ per ounce} \]<br /><br />Now, we compare the unit prices:<br />- 6-ounce bottle: \$0.26 per ounce<br />- 14-ounce bottle: \$0.24 per ounce<br />- 20-ounce bottle: \$0.28 per ounce<br /><br />The 14-ounce bottle has the lowest unit price at \$0.24 per ounce, making it the better buy.<br /><br />Therefore, the better buy is the 14-ounce bottle.