College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.5 - Page 572: 78


B belongs to the solution set.

Work Step by Step

We test whether the coordinates of B$=(76,220)$ satisfy BOTH inequalities. Inequality 1: $5.3(76)-220 \geq 180\quad?$ $182.8 \geq 180\quad?$ Yes. Inequality $2$: $4.1(76)-220 \leq 140\quad?$ $91.6 \leq 140\quad?$ Yes. Both inequalities are satisfied. B belongs to the solution set.
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