Question

To fit in an existing frame, the length, x, of a piece of glass must be longer than 12 cm but not longer than 12.2 cm. Which inequality can be used to represent the lengths of the glass that will fit in the frame?

12 < x ≤ 12.2
12 > x ≤ 12.2
x > 12 or x ≤ 12.2
x < 12 or x ≤ 12.2

Answer 1

12 < x ≤ 12.2

This means x is greater than 12 cm but less than or equal to 12.2 cm, which matches the requirement.