Answer :
To find out which bottle of water is a better deal, we need to determine the cost per ounce, also known as the unit rate, for each bottle.
1. Calculate the unit rate for the 16-ounce bottle:
- The cost of the 16-ounce bottle is [tex]$2.40.
- To find the cost per ounce, divide the total cost by the number of ounces:
\[
\text{Unit rate for 16-ounce bottle} = \frac{\$[/tex]2.40}{16 \text{ ounces}} = \[tex]$0.15 \text{ per ounce}
\]
2. Calculate the unit rate for the 28-ounce bottle:
- The cost of the 28-ounce bottle is $[/tex]2.80.
- To find the cost per ounce, divide the total cost by the number of ounces:
[tex]\[
\text{Unit rate for 28-ounce bottle} = \frac{\$2.80}{28 \text{ ounces}} = \$0.10 \text{ per ounce}
\][/tex]
Now that we have both unit rates:
- The 16-ounce bottle costs [tex]$0.15 per ounce.
- The 28-ounce bottle costs $[/tex]0.10 per ounce.
From this, we can see that the 28-ounce bottle is a better deal, as it costs less per ounce.
1. Calculate the unit rate for the 16-ounce bottle:
- The cost of the 16-ounce bottle is [tex]$2.40.
- To find the cost per ounce, divide the total cost by the number of ounces:
\[
\text{Unit rate for 16-ounce bottle} = \frac{\$[/tex]2.40}{16 \text{ ounces}} = \[tex]$0.15 \text{ per ounce}
\]
2. Calculate the unit rate for the 28-ounce bottle:
- The cost of the 28-ounce bottle is $[/tex]2.80.
- To find the cost per ounce, divide the total cost by the number of ounces:
[tex]\[
\text{Unit rate for 28-ounce bottle} = \frac{\$2.80}{28 \text{ ounces}} = \$0.10 \text{ per ounce}
\][/tex]
Now that we have both unit rates:
- The 16-ounce bottle costs [tex]$0.15 per ounce.
- The 28-ounce bottle costs $[/tex]0.10 per ounce.
From this, we can see that the 28-ounce bottle is a better deal, as it costs less per ounce.
