Subjects algebra

Inequality Signed Fractions Fa358A

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Question: Solve the inequality for $u$. $$\frac{12}{11} \geq -16u$$ Simplify your answer as much as possible.
1. **State the problem:** Solve the inequality $$\frac{12}{11} \geq -16u$$ for $u$. 2. **Recall the rule:** When multiplying or dividing both sides of an inequality by a negative number, the inequality sign must be reversed. 3. **Isolate $u$:** Divide both sides by $-16$. Since $-16$ is negative, reverse the inequality sign: $$\frac{12}{11} \geq -16u \implies \frac{12}{11} \div (-16) \leq u$$ 4. **Simplify the division:** $$\frac{12}{11} \div (-16) = \frac{12}{11} \times \frac{1}{-16} = \frac{12}{11} \times \frac{-1}{16} = -\frac{12}{176}$$ 5. **Simplify the fraction:** $$-\frac{12}{176} = -\frac{3}{44}$$ 6. **Final solution:** $$u \geq -\frac{3}{44}$$ **Answer:** $$u \leq -\frac{3}{44}$$ because the inequality sign reversed when dividing by negative. Note: Step 3 shows the reversal of the inequality sign due to division by a negative number.