What are the solutions of the compound inequality 2d + 3 ≤ –11 or 3d

asked Jun 10, 2021 130k views

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What are the solutions of the compound inequality 2d + 3 ≤ –11 or 3d – 9 > 15?

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Explanation:

$2d + 3 \leqslant - 11 \\ 2d \leqslant - 11 - 3 \\ 2d \leqslant - 14 \\ (2d)/(2) \leqslant ( - 14)/(2) \\ d \leqslant - 7$

$3d - 9 > 15 \\ 3d > 15 + 9 \\ 3d > 24 \\ (3d)/(3) > (24)/(3) \\ d = 8$

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HardQuestions answered Jun 14, 2021

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