Mathematics, 04.12.2020 17:40 joannegrace37
2. The acidity in a swimming pool is considered normal if the average of three pH readings is
between 7.0 and 7.8. If the first two readings are 7.2 and 7.6, what possible readings would the
third reading need to be to have an overall rating of normal?
Answers: 1
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2. The acidity in a swimming pool is considered normal if the average of three pH readings is
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