Question

The pH scale measures how acidic or basic a substance is. Bleach is said to have a pH of less than 14 and greater than 11. Model the normal range of pH values of bleach, using a compound inequality. 11 > x > 14 11 < x < 14 11 ≤ x ≤ 14 11 ≥ x ≥ 14

Answer 1

11 < x < 14

Explanation:

Bleach is said to have a pH of less than 14 and greater than 11.

Let x = pH

First, we will consider individual inequalities.

• Given x is greater than 11, 11 < x (this means that x takes values higher than 11, but not 11).

• Given x is less than 14, x < 14 (this means that x takes values lower than 14, but not 14).

If we take both inequalities, we can set up a compound inequality: 11 < x < 14.

Answer 2

The answer to your question is: 11 < pH < 14

Explanation:

Data

Bleach have a pH less than 14 and greater than 11.

We have to use these symbols:

< greater than > less than

and pH will be in the middle

11 < pH < 14

This inequality means the Bleach has a pH between 11 and 14