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 1-2 - Cumulative Review - Page 152: 4



Work Step by Step

To divide fractions, multiply the dividend by the reciprocal of the divisor. The quotient is positive if the dividend and divisor have the same signs. Otherwise, the quotient is negative. Hence, \begin{array}{l}\require{cancel} -5\div\left(-\dfrac{1}{2} \right) \\\\= 5\div\dfrac{1}{2} \\\\= 5\cdot\dfrac{2}{1} \\\\= 5\cdot2 \\\\= 10 .\end{array}
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