Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 3 - Solving Inequalities - 3-8 Unions and Intersections of Sets - Practice and Problem-Solving Exercises - Page 220: 53

Answer

−5≤d≤5

Work Step by Step

|4d|≤20⟶ write as a compound inequality −20≤4d≤20⟶ divide all parts by 4 −20÷4≤4d÷4≤20÷4⟶ divide −5≤d≤5
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