Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 5 - Ratio and Proportion - 5.2 Rates - 5.2 Exercises: 2

Answer

(2 $)/(5 pens)

Work Step by Step

12 for 30 pens. (12 $)/(30 pens)= (12 $ ÷6)/(30 pens ÷6)= (2 $)/(5 pens)
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