Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 5 - Section 5.1 - Fundamental Operations - Exercise - Page 214: 25


$$\frac{1}{3}$$ or $$0.33$$

Work Step by Step

Step 1: Substitute $x=-1$ and $y=5$ $\frac{y-4x}{3x-6xy}$ $\frac{5-4(-1)}{3(-1)-6(-1)(5)}$ Step 2: Remember the order of operations. Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction So, first Parenthesis $\frac{5+4}{-3+30}$ Step 3: Next, Add/Subtract in both the denominator and numerator. $\frac{9}{27}$ Step 4: Divide $\frac{1}{3}$ or $0.33$
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