d. \(x:\dfrac{5}{11}=22\)

\(x=22\) x \(\dfrac{5}{11}\)

\(x=10\)

c. \(\dfrac{2}{5}:x=\dfrac{1}{3}\)

\(x=\dfrac{2}{5}:\dfrac{1}{3}\)

\(x=\dfrac{2}{5}\) x \(3\)

\(x=\dfrac{6}{5}\)

b. \(\dfrac{2}{5}\) x \(x=\dfrac{2}{3}\)

\(x=\dfrac{2}{3}:\dfrac{2}{5}\)

\(x=\dfrac{2}{3}\) x \(\dfrac{5}{2}\)

\(x=\dfrac{5}{3}\)

a. \(x-\dfrac{3}{2}=\dfrac{5}{6}\)

\(x=\dfrac{5}{6}+\dfrac{3}{2}\)

\(x=\dfrac{14}{6}=\dfrac{7}{3}\)

2 giờ 54 phút

B

"Tham khảo" =)))?

\(\dfrac{16}{9}\)