Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - 1.5 Addition of Real Numbers - 1.5 Exercise Set - Page 43: 70

Answer

The size class dropped by 1 student.

Work Step by Step

We find the total change by writing the changes as an expression and adding from left to right. -5 + 8 + (-4) = 3 + (-4) = -1 -1 indicates a change in 1 student, with the negative sign meaning it was a drop.
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