On January 11, 2014, there were approximately 10,200 tons of garbage in the Chicago River. The river will be officially marked as environmentally safe when there are less than 5,200 tons of garbage. Each year since then, clean-up efforts have been able to remove 350 tons of garbage. If t represents the number of years since January 1", 2014, which of following inequalities can be used to determine when the Chicago River is environ mentally safe? A) 10,200 = 350t < 5,200 B) 10,200 – 350t> 5,200 C) 350t < 5,200 D) 10,200 350

On January 11, 2014, there were approximately 10,200 tons of garbage in the Chicago River. The river will be officially marked as environmentally safe when there are less than 5,200 tons of garbage. Each year since then, clean-up efforts have been able to remove 350 tons of garbage. If t represents the number of years since January 1", 2014, which of following inequalities can be used to determine when the Chicago River is environ mentally safe? A) 10,200 = 350t < 5,200 B) 10,200 – 350t> 5,200 C) 350t < 5,200 D) 10,200 350

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.8: Solving Absolute Value Equations And Inequalities

Problem 3E

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