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: 10

Answer

20 %

Work Step by Step

what percent of 40 is 8 ? what percent is percent 40 is base 8 is amount $\frac{8}{40}$=$\frac{p}{100}$ set cross product equal 40$\times$ p = 8 $\times$ 100 Multiply 40p= 800 divide both sides by 40 $\frac{40p}{40}$ = $\frac{800}{40}$ p= 20 8 is 20 % of 40.
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