At the grocery store, one brand of ice cream costs $4.50 for 48 ounces. The same brand costs $7 for 128 ounces or $3 for 64 ounces. Which size has the lower unit price? Responses 64 ounces 64 ounces - no response given 128 ounces 128 ounces - no response given 48 ounces 48 ounces - no response given They cost the same per ounce.

Answer 1

To determine which size of ice cream has the lower unit price, we need to calculate the price per ounce for each option:

1. 48 ounces for $4.50: \[ \text{Unit price} = \frac{$4.50}{48 \text{ ounces}} = \frac{4.50}{48} \approx 0.09375 \text{ dollars per ounce} \]

2. 64 ounces for $3: \[ \text{Unit price} = \frac{$3}{64 \text{ ounces}} = \frac{3}{64} \approx 0.046875 \text{ dollars per ounce} \]

3. 128 ounces for $7: \[ \text{Unit price} = \frac{$7}{128 \text{ ounces}} = \frac{7}{128} \approx 0.0546875 \text{ dollars per ounce} \]

Now, let's summarize the unit prices:

• 48 ounces: $0.09375 per ounce
• 64 ounces: $0.046875 per ounce
• 128 ounces: $0.0546875 per ounce

The 64-ounce option has the lowest unit price at approximately $0.046875 per ounce.

Therefore, the answer is 64 ounces.