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?(1 point)

Responses

64 ounces
64 ounces

128 ounces
128 ounces

48 ounces
48 ounces

They cost the same per ounce.

1 answer

To find the unit price for each option, we need to divide the total price by the number of ounces.

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

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

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

Now let's compare 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 of approximately $0.04688 per ounce.

Therefore, the answer is:

64 ounces.