Algebra 1: Common Core (15th Edition)

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

Chapter 3 - Solving Inequalities - 3-1 Inequalities and Their Graphs - Practice and Problem-Solving Exercises - Page 168: 38



Work Step by Step

The phrase, "at least 475 students" implies that at least 475 students attended the orchestra. The number of students could be 475 or more, but not less. This translates to greater than or equal to ($\geq$). Let $s$ be the number of students who attended. The number of students who attended is greater than or equal to 475. Therefore, the correct inequality for this statement is $s\geq475$.
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