To find out how many fluid ounces are in two gallons, we can perform the following conversions:
- Start with the gallons to fluid ounces conversion:
- 1 gallon = 4 quarts
- 1 quart = 2 pints
- 1 pint = 2 cups
- 1 cup = 8 fluid ounces
Now, let's calculate it step by step:
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First, convert gallons to quarts: \( 2 \text{ gallons} \times 4 \text{ quarts/gallon} = 8 \text{ quarts} \)
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Next, convert quarts to pints: \( 8 \text{ quarts} \times 2 \text{ pints/quart} = 16 \text{ pints} \)
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Convert pints to cups: \( 16 \text{ pints} \times 2 \text{ cups/pint} = 32 \text{ cups} \)
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Finally, convert cups to fluid ounces: \( 32 \text{ cups} \times 8 \text{ fluid ounces/cup} = 256 \text{ fluid ounces} \)
So, Ian bought 256 fluid ounces of juice.
Now, to find the unit rate, we need to calculate the cost per fluid ounce. The total cost of the juice is $28.16.
Now, we find the cost per fluid ounce: \[ \text{Cost per fluid ounce} = \frac{\text{Total Cost}}{\text{Total Fluid Ounces}} = \frac{28.16}{256} \approx 0.110 \text{ (rounded to three decimal places)} \]
Thus, the cost of juice is approximately $0.11 per fluid ounce.