Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - Chapter 1 Test - Page 39: 11



Work Step by Step

If the temperature will drop $13°$ by 6 AM and is $7°$ currently, it will be $13$ less than $7$ at 6 AM. $7-13=7+(-13)=-6$. The temperature at 6 AM will be $-6°F$
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