a, 2 : y = 1 : 3
2 : y = \(\dfrac{1}{3}\)
y = 2 : \(\dfrac{1}{3}\)
y = 6
b, 24,68 \(\times\) y - y \(\times\) 12,34 = 24,68
y \(\times\) ( 24,68 - 12,34) = 24,68
y \(\times\) 12,34 = 24,68
y = 24,68 : 12,34
y = 2
2/y = 1/3
3y x 2/y = 3y x 1/3
3 x 2 = y
6 = y
y = 6
Hoc tot nhee !☺
Nho tick cho to a <33
#mintimngiu
b.
24,68 y - y 12,34 = 24,68
y ( 24,68 - 12,34) = 24,68
y 12,34 = 24,68
y = 24,68 : 12,34
y = 2
Hoc tot nhee !
Nho tick cho a <33☺
#mintimngiu