the perimeter of a rectangle is 126 cm, and the width is 24 cm. how can you represent this relationship with an equation to find the rectangle's length
Let's represent the length of the rectangle as "L".
The perimeter of a rectangle is calculated by adding up all its sides, which means that:
Perimeter = 2(length + width)
Given that the width is 24 cm, we can substitute the given values into the equation:
126 = 2(L + 24)
Now, let's simplify the equation and solve for L:
126 = 2L + 48
Subtract 48 from both sides:
78 = 2L
Divide both sides by 2:
39 = L
Therefore, the equation to find the rectangle's length is L = 39.