Basic College Mathematics (10th Edition)

by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.

Published by Pearson

ISBN 10: 0134467795

ISBN 13: 978-0-13446-779-5

Chapter 5 - Ratio and Proportion - 5.1 Ratios - 5.1 Exercises - Page 336: 32

Answer

$$\frac{2}{13}$$

Work Step by Step

We find the ratio of Halloween cards to mother's day cards by dividing the number of Halloween cards by the number of mother's day cards: $$ \frac{20 \ million}{130\ million} \\ \frac{20}{130} \\ \frac{2}{13}$$

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