Algebra 1: Common Core (15th Edition)

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

Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises - Page 34: 37

Answer

-20.3

Work Step by Step

When a negative is subtracted by a positive, the negative becomes more negative. Thus, it follows: $-2.5-17.8=-20.3$
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