Answer:
12
Explanation:
To find the constant of proportionality, we need to determine the relationship between the number of seals produced and the time taken by the machine.
Let's calculate the rate at which the machine produces seals.
In the first case, the machine produces 36 seals in 3 hours. Therefore, the rate is 36 seals divided by 3 hours, which equals 12 seals per hour.
In the second case, the machine produces 60 seals in 5 hours. So, the rate is 60 seals divided by 5 hours, which equals 12 seals per hour.
Since the rate is the same in both cases (12 seals per hour), we can conclude that the constant of proportionality is 12.
This means that for every hour the machine operates, it will produce 12 seals.