Mathematics, 29.06.2019 09:00 19thomasar

19. a county government says that a safe level of chlorine in a hot tub is within 1.75 ppm of 3.25 ppm. a. write and solve an absolute value inequality to represent this situation. b. a lifeguard measures the chlorine level in the pool and finds it is 1.0 ppm. should he add more chlorine? explain.

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