Vamos a aprender mais sobre
frecciones
INSTRUCCIONES: Resuelve los siguientes problemas.
a) En una cremería se encuentran los tableros de precios incompletos. Ayúdales a completarlos.
1
QUESO
1
1 kg
10
8
1
5
1
4
3
$ 120
1
2
$ 60
4

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

20%

step-by-step explanation:

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

idk

step-by-step explanation:

payback