Basic College Mathematics (10th Edition)

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

Chapters 1-5 - Cumulative Review Exercises - Page 377: 18



Work Step by Step

800 total adults drink coffee and 200 do not. Therefore, there is 4 coffee drinkers for every 1 non-coffee drinker. That ratio is $\frac{800}{200}=\frac{4}{1}$
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