a)y=55,8 : 4,5

y=12,4

b) y=25,42 x 2,5

y= 63,55

`a)`

`yxx4,5=55,8`

`y=55,8:4,5`

`y=12,4`

`b)`

`y:2,5=25,42`

`y=25,42xx2,5`

`y=63,55`

a.y=12.4

b.y=63.55

a, y=12,4

b, y=63,55

62/5

1271/20

y= 55.8:4.5

y= 12.4

y= 25.42x2.5

y = 63.55

a, 12,4

b, 63,55

y: nha

ai tra loi nhanh nhat mik chon nha

giup pls

`xxx4,5=55,8`

`x=55,8:4,5`

`x=12,4`

____________________

`x:2,5=25,42`

`x=25,42xx2,5`

`x=63,55`

\(x=55,8:4,5\)

\(x=12,4\)

\(x=25,42\times2,5\)

\(x=63,55\)

a, y=12,4

b, y=63,55