Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 3 - Section 3.4 - The Slope-Intercept Form of the Equation of a Line - Exercise Set - Page 253: 81


The number we are looking for is $56$.

Work Step by Step

We need to set up the equation first for this problem. We break down the different portions of the statement and translate them algebraically: "$14$ is" means $14 = $ "25%" can be changed into a decimal, which becomes $0.25$. "Of what number" means to multiply by $x$. We can put all the parts together to set up an equation we can solve: $$14 = 0.25x$$ We divide each side by $0.25$ to solve for $x$: $$x = 56$$ The number we are looking for is $56$.
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