Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.2 Adding and Subtracting Signed Numbers - 9.2 Exercises: 75

Answer

(a) $-17^o$ F (b) $-41^o$ F

Work Step by Step

Use the table to find the "windchill" temperature. (a) $5^o$ F is in the 9th column while $25$ mph wind is in the 6th row of the first column. The intersection of the 6th row and the 9th column is $-17$. Thus, the "windchill" temperature is $-17^o$ F. (b) $-5^o$ F is in the 12th column while $35$ mph wind is in the 8th row of the first column. The intersection of the 8th row and the 12th column is $-41$. Thus, the "windchill" temperature is $-41^o$ F.
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