Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 2 - Solving Equations - 2-9 Percents - Standardized Test Prep - Page 143: 54



Work Step by Step

Use the percent proportion to find the percent. $\frac{part}{base}=\frac{percent}{100}\longrightarrow$ let p be the percent; substitute given values $\frac{2}{10000}=\frac{p}{100}\longrightarrow$ cross multiply $10000p=200\longrightarrow$ divide both sides by 10000 $10000p\div10000=200\div10000\longrightarrow$ divide $p=0.02$ When using the percent proportion, p is already in percent form. No conversion from decimal to percent is needed.
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