Question

Each DVD storage case is about 1/5 inch thick. What will be the height in simplest form of 12 cases sold together?

Answer 1

2 2/5 inches thick.

1/5 x 12 = 12/5 then make that into a mixed number.

Answer 2

Height of the 12 cases will be =
`2(2)/(5)` inches.

Explanation:

Thickness of each DVD storage case =
`(1)/(5)` inches

Let number of DVD storage cases sold = x

Therefore, the height of cases sold will be represented by the expression
`(x)/(5)`

If the number of cases sold x = 12

So the height of the cases sold will be =
`(12)/(5)` inches

=
`2(2)/(5)` inches

Therefore, the answer is
`2(2)/(5)` inches.