Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Entry-Level Assessment - Page xxxvii: 13

Answer

$$\text{D}$$

Work Step by Step

Solve the inequality to obtain: \begin{align*} 5(2x)+5(4)&\ge2(x)+2(34) &\text{Use distributive property.}\\ 10x+20&\ge2x+68 &\text{Simplify.}\\ 10x-2x&\ge68-20 &\text{Isolate the $x$-terms on the left side.}\\ 8x&\ge48 &\text{Simplify.}\\ \frac{8x}{8}&\ge \frac{48}{8} &\text{Divide $8$ to both sides.}\\ x&\ge 6 \end{align*} Thus, any number that is greater than or equal to $6$ is a solution to the given inequality. Among the choices, only $3$ is less than $6$. Therefore, the answer is Option $\text{D}$.
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