Respuesta :
ANSWER
The constant of proportionality is 24.
EXPLANATION
If the volume of a box (V) varies directly with it's length (l), then we can write the mathematical statement,
[tex]V\propto l[/tex]
We introduce the constant of proportionality k, and write the equation,
[tex]V = k l[/tex]
When V=288, l=12.
We substitute these values to obtain;
[tex]288 = 12k[/tex]
Divide both sides by 12,
[tex]k = \frac{288}{12} =24 [/tex]
The constant of proportionality is 24.
EXPLANATION
If the volume of a box (V) varies directly with it's length (l), then we can write the mathematical statement,
[tex]V\propto l[/tex]
We introduce the constant of proportionality k, and write the equation,
[tex]V = k l[/tex]
When V=288, l=12.
We substitute these values to obtain;
[tex]288 = 12k[/tex]
Divide both sides by 12,
[tex]k = \frac{288}{12} =24 [/tex]