Question

Please Help!!

The volume of a box(V) varies directly with its length(l). If a box in the group has a length of 30 inches, and the girth of 20 inches (perimeter of the side formed by the width and height), what is its height? Use k = 24. (Hint: Volume = length width height. Solve for length, and substitute into the equation for constant of proportionality.) ___ inches or ___ inches

Answer 1

V=kl
l = V/k
30 =V/24
V = 720 cu. in.
height = V/[length*width]
height = V/[30*width)