Chemistry, 07.03.2020 00:09 cschellfamily

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 part per million and no greater than parts per million. Write a compound inequality for the acceptable range of chlorine levels.

Let =chlorine level in a swimming pool (in parts per million) ≤≤

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Swimming pools must have a certain amount of chlorine content. The United States standard for safe l...