Mathematics, 08.09.2021 02:50 jerikkaharris7057
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. Thank you!
A. 6.5 < x < 8.5
B. 6.5 > x > 8.5
C. 6.5 ≤ x ≤ 8.5
D. 6.5 ≥ x ≥ 8.5
Answers: 3
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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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