Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 2 - Solving Linear Inequalities - 2.5 - Solving Compound Inequalities - Exercises - Page 86: 25

Answer

No solution. The graph is shown below.

Work Step by Step

The given inequality is $\Rightarrow 22\lt-3c+4\lt 14$ Write two inequalities. $\Rightarrow 22\lt-3c+4$ and $-3c+4\lt 14$ Subtract $4$ from each side. $\Rightarrow 22-4\lt-3c+4-4$ and $-3c+4-4\lt 14-4$ Simplify. $\Rightarrow 18\lt-3c$ and $-3c\lt 10$ Divide each side by $-3$. Reverse the inequality symbol. $\Rightarrow \frac{18}{-3}\gt\frac{-3c}{-3}$ and $\frac{-3c}{-3}\gt \frac{10}{-3}$ Simplify. $\Rightarrow -6\gt c$ and $c\gt -\frac{10}{3}$ Hence, the inequality has no solution.
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