Answer:
3 inches
Step-by-step explanation:
25*20*h=750
500h=750
h=1.5
Height*2 = length of one of the cut corners
1.5*2=3
Therefore, 3 inches
5 in
x = number of in cut from each side
V = 750
V=lwh
l = 25 -2x
w = 20-2x
h =x
V = (25-2x)(20-2x)x
(25-2x)(20-2x)x = 750
4x^3-90x^2+500x-750=0
Factor it and solution is 5/2,5,15
