Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 2 - Systems of Linear Equations and Inequalities - 2.4 Solving Linear Inequalities - 2.4 Exercises - Page 172: 11

Answer

Michelle solved the inequality correctly. Amy reversed the inequality sign right away, which was too early. She then reversed it again when she divided by a negative number. Amy ended up with the same sign as in the original equation. Michelle didn't reverse the sign until she had to divide both sides by a negative number, which is correct.

Work Step by Step

Michelle solved the inequality correctly. Amy reversed the inequality sign right away, which was too early. She then reversed it again when she divided by a negative number. Amy ended up with the same sign as in the original equation. Michelle didn't reverse the sign until she had to divide both sides by a negative number, which is correct.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.

GradeSaver will pay $15 for your literature essays
GradeSaver will pay $25 for your college application essays
GradeSaver will pay $50 for your graduate school essays – Law, Business, or Medical
GradeSaver will pay $10 for your Community Note contributions
GradeSaver will pay $500 for your Textbook Answer contributions