Prealgebra (7th Edition)

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

Chapter 7 - Section 7.3 - Solving Percent Problems with Proportions - Practice: 8

Answer

80

Work Step by Step

65 % of what number is 52 ? 65 is percent what number is base 52 is amount $\frac{52}{b}$=$\frac{65}{100}$ set cross product equal 65$\times$ b = 52 $\times$ 100 Multiply 65b= 5200 divide both sides by 100 $\frac{65b}{65}$ = $\frac{5200}{65}$ b= 80 52 is 65 % of 80.
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