Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 9 - Basic Algebra - 9.3 Multiplying and Dividing Signed Numbers - 9.3 Exercises - Page 647: 102

Answer

a) $$\frac{-5}{-1} = 5$$ $$\frac{-13}{-1} = 13$$ $$\frac{-21}{-1} = 21$$ b) $$\frac{5}{-1}= -5$$ $$\frac{13}{-1}= -13$$ $$\frac{21}{-1} = -21$$ Divide by $-1$ give you the same number but with different sign

Work Step by Step

a) $$\frac{-5}{-1} = 5$$ $$\frac{-13}{-1} = 13$$ $$\frac{-21}{-1} = 21$$ b) $$\frac{5}{-1}= -5$$ $$\frac{13}{-1}= -13$$ $$\frac{21}{-1} = -21$$ Divide by $-1$ give you the same number but with different sign
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