A rectangular fish tank can hold 31 1/2 ft^3 of water. If the length of the tank is 3 1/2 ft and the height is 4 ft, what is the height?

Question

I NEED HELP IM SO CONFUSED :(

Answer 1

V=31.5 = HLW = (4)(3)W= 12W

12W = 31.5

W = 31.5/12 = 2.625 feet = 2 5/8 ft wide= 21/8 feet

Length= 3 feet

Height= 4 feet

Width = 2 5/8 feet

volume = 3x4x2.625 = 31.5 ft^3