Write the equation and solve. A square has a perimeter of 40,
Each side is X+1. Write an
equation and solve for x.

equation: 4x + 4 = 40

x = 9

Step-by-step explanation:

Given information:

• The perimeter of a square = 40

• Each side = x + 1

A square has 4 sides, and since each of the side lengths = x + 1, the perimeter is equal to 4(x + 1).

So, the perimeter is equal to 4x + 4, which is also equal to 40.

The equation that can be made to solve for x  is 4x + 4 = 40.

Now, to solve the equation:

4x + 4 = 40     Subtract both sides by 4 to isolate the variable.

4x = 36           Divide both sides by 4 to get the value of x.

x = 9

The value of x in this equation is x = 9.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4