The equation P=21+2W can be used to find the perimeter of a rectangle. A rectangular shaped playground is enclosed by a fence that is 500 m. The length of the playground is 120 m. Use the equation to determine the width of the playground.
2L, not 21
2*120 + 2L = 500
To find the width of the playground, we can use the given equation P = 21 + 2W, where P represents the perimeter of the rectangle and W represents the width of the rectangle.
Given that the fence enclosing the playground has a length of 500 m, we can substitute the value of P as 500 into the equation:
500 = 21 + 2W
To find the value of W, we need to isolate it on one side of the equation. First, let's subtract 21 from both sides of the equation:
500 - 21 = 21 - 21 + 2W
Simplifying further, we have:
479 = 2W
To solve for W, we divide both sides of the equation by 2:
479/2 = 2W/2
239.5 = W
Therefore, the width of the playground is 239.5 m.
To determine the width of the playground, we can use the equation P = 21 + 2W, where P represents the perimeter and W represents the width of the rectangle.
In this case, we know that the perimeter of the playground fence is 500 m and the length of the playground is 120 m.
We can substitute these values into the equation and solve for the width:
500 = 21 + 2W
Subtract 21 from both sides of the equation:
500 - 21 = 21 + 2W - 21
479 = 2W
Divide both sides of the equation by 2:
479/2 = 2W/2
239.5 = W
Therefore, the width of the playground is 239.5 meters.