Answer:
Constant of proportionality, k = 21
[tex]w \propto n\\w = kn\\w = 21n[/tex]
Step-by-step explanation:
We are given the following in the question:
The amount of flour required is directly proportional to the number loaf of breads made.
Let w be the weight of flour and n be the number of loaf of breads.
Thus, we can write,
[tex]w \propto n\\w = kn[/tex]
where k is the constant of proportionality.
21 ounces of flour is required to make 1 loaf of bread.
Putting these values, we get,
[tex]21 = k(1)\\\Rightarrow k = 21[/tex]
Thus, the equation giving relation between weight of bread and number of loafs of bread is
[tex]w = 21n[/tex]