Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 6 - Percent - 6.2 Percents and Fractions - 6.2 Exercises - Page 400: 80


a) $\frac{7}{20}$ b) $\frac{13}{20}$

Work Step by Step

a) Portion that used electronic record keeping: $\frac{119}{340}$=$\frac{7}{20}$ b) Portion that did not use it: $1-\frac{7}{20}=\frac{13}{20}$
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