Essay

SOP Review for Temperature-Controlled Cargo

Suppose you are working as a safety inspector trainee at a manufacturing plant. You are reviewing a newly drafted standard operating procedure (SOP) that states: 'To maintain system stability, the internal chamber pressure pp must satisfy both p<30p < 30 psi and p>60p > 60 psi simultaneously.'

Recalling the mathematical principles of compound inequalities joined by the word 'and', write a brief explanation of why this SOP contains an impossible requirement. In your response, make sure to:

  1. State what the word 'and' requires when finding the final solution to a compound inequality.
  2. Describe how the solution regions for the individual inequalities, p<30p < 30 and p>60p > 60, would look geometrically when graphed on a number line, noting whether they overlap.
  3. Identify the final mathematical solution set that results from this combination.

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Updated 2026-06-03

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