Question

The volume of a box(V) varies directly with its length(l). If one of the boxes has a volume of 288 cubic inches and a length of 12 inches, what is the constant of proportionality for the group of boxes?

Answer 1

24

Explanation:

Varies directly means that something constant times l equals V or V=kl where k is that constant.

Plug in point given 288=k(12) and solve the constant of proportionality by dividing both sides by 12.

k=288/12=24