Question

The thickness of the walls used in the construction of buildings must be between 12.25 inches and 15.75 inches inclusive. Write, graph and solve the absolute value inequality describing the acceptable thickness of the walls.

Answer 1

lx-14l
`\leq` 1.75

Explanation:

1- find the mean

15.75+12.25/2=14

2- Tolerance

15.75-14=1.75

lx-14l
`\leq` 1.75