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: 39

Answer

150

Work Step by Step

42% of what number is 63? 42% $\times$ x =63 Translate to an equation 0.42 $\times$ x=63 Write 42% as decimal $\frac{0.42 \times x}{0.42}$ =$\frac{63}{0.42}$ Divide both sides by 0.42 x= $\frac{6300}{42}$ x = 150 63 is 42% of 150. Check 42% $\times$ x =63 0.42 $\times$ 150 =63 63=63
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