Question

\(\dfrac{-1}{8}\) ≤ \(\dfrac{x}{72}\) ≤ \(\dfrac{-1}{36}\)

Answer 1

\(\dfrac{-1}{8}\le\dfrac{x}{72}\le\dfrac{-1}{36}\)

\(\Rightarrow\dfrac{-1\cdot9}{8\cdot9}\le\dfrac{x}{72}\le\dfrac{-1\cdot2}{36\cdot2}\)

\(\Rightarrow\dfrac{-9}{72}\le\dfrac{x}{72}\le\dfrac{-2}{72}\)

\(\Rightarrow-9\le x\le-2\)

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