Algebra I.1.C.15 - Solution Sets of Two or More Equations (or Inequalities) Joined by “And” or "Or" - Exit Ticket

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4 questions

Swimming pools must have a certain amount of chlorine content. The United States standard for safe levels of chlorine in swimming pools is at least 1 part per million and no greater than 3 parts per million. Write a compound inequality for the acceptable range of chlorine levels.

From EngageNY.org of the New York State Education Department. Grade Algebra i Mathematics Module 1, Topic C, Lesson 15. Internet. Available from https://www.engageny.org/resource/algebra-i-module-1...; accessed 12/Oct/2015.