Question

giúp em với ạ

Answer 1

a: =>x/26=7/13

hay x=14

b \(\dfrac{x}{\dfrac{2}{7}}=\dfrac{4}{5.2}\)

nên \(x=\left(4\cdot\dfrac{2}{7}\right):5.2=\dfrac{8}{7}:\dfrac{26}{5}=\dfrac{40}{182}=\dfrac{20}{91}\)

c: =>0,1x=5/27

hay x=5/27:1/10=50/27

e: =>x=5/4x8=10