Mathematics, 29.09.2020 01:01 slonzyy1682
The pH scale measures how acidic or basic a substance is. Normal drinking water needs to have a pH of less than 8.5 and greater than 6.5. Model the normal range of pH values of water, using a compound inequality.
6.5 < x < 8.5
6.5 > x > 8.5
6.5 ≤ x ≤ 8.5
6.5 ≥ x ≥ 8.5
Answers: 2
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The pH scale measures how acidic or basic a substance is. Normal drinking water needs to have a pH o...
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