ALGEBRA 1 HONORS

Question

A box that has a length of 2x + 2 and width of x - 2 has a perimeter of 90 centimeters. If the height of the box is x, what is the volume of the box?

A.)416 cm³

B)480 cm³

C)3,375 cm³

D)6,240 cm³

Answer 1

The perimeter of a rectangle is:

P = 2·Length + 2·Width

90 = 2(2x+2) + 2(x-2)

Solve for x. The volume is:

V = Length x Width x Height

V = (2x+2) (x-2) (x)

Plug in the value for x that you got to get the answer.