Question 1023206
Well if the volume of the box is 180, and the height is ten, then the area of the base must be 180/10 = 18 square inches.
Then we can write
Area A = LW = 18 and L = W+3
Now substitute and get
(W+3)(W) = 18
W^2 + 3W - 18 = 0
(W + 6)(W - 3 = 0
W = -6 or W = 3
Thus the width is 3 inches.
The box is 3" x 6" x 10".