Basic College Mathematics (10th Edition)

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

Chapter 10 - Statistics - Test - Page 754: 11


Percent of Total is 5%.

Work Step by Step

Use ratios and cross multiplication to find the percent of total. $\frac{part}{whole}=\frac{percent}{100}$ A whole circle is $360^\circ$. $\frac{18}{360}=\frac{x}{100}\longrightarrow$ Cross multiply. $360x=(18)(100)\longrightarrow$ Simplify. $360x=1800\longrightarrow$ Divide both sides by 360 to solve for x. $360x\div360=1800\div360\longrightarrow$ Simplify. $x=5$
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