Question

Answer 1

\(a,x=\dfrac{7}{9}:\dfrac{7}{2}=\dfrac{14}{63}\\ b,x=\dfrac{5}{2}\times\dfrac{8}{5}=4\)

Answer 2

a, \(x=\dfrac{7}{9}:\dfrac{7}{2}=\dfrac{2}{9}\)

b, \(x=\dfrac{5}{2}.\dfrac{8}{5}=4\)

Answer 3

a.\(x=\dfrac{7}{9}:\dfrac{7}{2}=\dfrac{7.2}{9.7}=\dfrac{14}{63}\)

b.\(x=\dfrac{5}{2}.\dfrac{8}{5}=\dfrac{5.8}{2.5}=\dfrac{40}{10}=4\)

Answer 4

a: =>x=7/9:7/2=2/9

b: =>x=5/2x8/5=4

Answer 5

A: x = 7/2 : 7/9

B: x = 5/2.8/5

Answer 6

\(a,x=\dfrac{7}{9}:\dfrac{7}{2}\)

 \(x=\dfrac{7}{9}.\dfrac{2}{7}\)

\(\Rightarrow x=\dfrac{2}{9}\)

\(b,x=\dfrac{5}{2}:\dfrac{8}{5}\)

\(x=\dfrac{5}{2}.\dfrac{8}{5}\)

\(x=4\)