The gallons of milk per day is an illustration of unit rates.
Ken needs to buy 2 gallons to last them for 3 days.
Given that:
[tex]Rates= \frac 23[/tex] gallons per day
[tex]Days = 3[/tex]
The number of gallons that will last 3 days is:
[tex]Gallons = Rate\times Days[/tex]
So, we have:
[tex]Gallons = \frac 23 \times 3[/tex]
Multiply 2 and 3
[tex]Gallons = \frac 63[/tex]
Divide 6 by 3
[tex]Gallons = 2[/tex]
Hence, 2 gallons will last Ken's family for 3 days.
Read more about unit rates at:
https://brainly.com/question/18065083
