Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 1 - Solving Linear Equations - 1.1 - Solving Simple Equations - Monitoring Progress - Page 5: 6

Answer

$w=28$

Work Step by Step

$\begin{align*} \frac{0.05w}{0.05}&=\frac{1.4}{0.05} &\text{Divide } 0.05 \text{ to both sides of the equation.}\\ w&=28 &\text{Simplify.} \end{align*}$ Check the solution by substituting $28$ to $w$ in the original equation: $\begin{align*} 0.05(28)&\stackrel{?}{=}1.4\\ 1.4&\stackrel{\checkmark}{=}1.4 \end{align*}$ Thus, the solution is $w=28$.
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