Solve for each of the formulas for the indicated variable:
If the perimeter of a rectangle is 60ft and its length is 18ft, find its width. (see formula in number 1)
The formula for the perimeter of a rectangle is P = 2L + 2W, where P is the perimeter, L is the length, and W is the width.
Given that the perimeter is 60ft and the length is 18ft, we can substitute these values into the formula and solve for the width.
60 = 2(18) + 2W
60 = 36 + 2W
2W = 60 - 36
2W = 24
W = 24/2
W = 12
Therefore, the width of the rectangle is 12ft.
The formula for the perimeter of a rectangle is:
P = 2(l + w)
In this case, the perimeter is given as 60ft and the length as 18ft. We need to find the width, denoted by w.
Substituting the given values into the formula, we have:
60 = 2(18 + w)
Now, let's solve for w step by step:
1. Simplify the expression inside the parentheses:
60 = 36 + 2w
2. Subtract 36 from both sides of the equation:
60 - 36 = 36 + 2w - 36
24 = 2w
3. Divide both sides of the equation by 2 to solve for w:
24/2 = 2w/2
12 = w
Therefore, the width of the rectangle is 12ft.