Answer:
[tex]k = 5[/tex]
Step-by-step explanation:
Given
The table
Required
Determine the constant of proportionality (k)
Represent the time with T and the amount of water with W
k is calculated as follows;
[tex]k = \frac{W}{T}[/tex]
Pick any corresponding values of W and T
[tex]W = 5 \\T=1[/tex]
So
[tex]k =\frac{5}{1}[/tex]
[tex]k = 5[/tex]
Hence, the constant of proportionality is 5
