Question

1.14×x=840:62.c×9=130+230​

Answer 1

Ответ:

1)14x=140 2)9c=360

x=140:14 c=360:9

x=10 c=40

Answer 2

Ответ:

1,14•х=840:6

1.14•х=140

х=140:1.14

х=122,1

Пошаговое объяснение:

2с•9=130+230

2с•9=360

2с=360:9

2с=40

с=40:2

с=20

Answer 3

To solve this system of equations, you can start by isolating one of the variables in one equation and then substituting it into the other equation. Let's solve for x in the first equation:

1.14x = 840

Now, divide both sides of the equation by 1.14 to isolate x:

x = 840 / 1.14 x ≈ 736.84

Now that we have the value of x, we can substitute it into the second equation to solve for c:

c * 9 = 130 + 230

First, add 130 and 230:

c * 9 = 360

Now, divide both sides by 9 to solve for c:

c = 360 / 9 c = 40

So, the solution to the system of equations is: x ≈ 736.84 c = 40