Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 7 - Exponents and Exponential Functions - Common Core Cumulative Standards Review - Selected Response - Page 482: 18

Answer

2 jackets

Work Step by Step

Out of the $50$ jackets, only $4\%$ were labeled the wrong size. So, the question is asking us to find $4\%$ of $50$. To do this we can first find $1\%$ of $50$. To find $1\%$ of any number, move the decimal point two places to the left. So, $1\%$ of $50$ is $0.5$. Now, to find $4\%$ of $50$, multiply what we have for $1\%$ by $4$. So, we multiply $0.5$ by $4$. $0.5\times4=2$, so $4\%$ of $50$ is $2$
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