Basic College Mathematics (10th Edition)

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

Chapter 6 - Percent - 6.1 Basics of Percent - 6.1 Exercises - Page 387: 57



Work Step by Step

If we need 300% of the chairs used last week for this week's meeting, this means that we need three times as many chairs this week as the amount of chairs used last week. Therefore, we need $3\times90=270$ chairs. 300%$=300\div100=3$ $90\times3=270$ chairs
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