Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 7 - Section 7.3 - Integrated Review - Percent and Percent Problems: 38


186.667 $\approx$ 187

Work Step by Step

What number is 45% of 84 ? x $\times$ 45% = 84 Translate to an equation x $\times$ 0.45=84 Write 45% as decimal $\frac{x \times0.45}{0.45}$ =$\frac{84}{0.45}$ Divide both sides by 0.45 x= $\frac{8400}{45}$ x$\approx$ 186.667
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