Question

The formula for the perimeter of a rectangle is P = 2(l + w). Solve for l.

a) l = (P/2) - w

b) l = (P/2w)

c) l = (P/2) + w

d) l = (P/4) - w

Answer 1

To solve for l in the formula for the perimeter of a rectangle, P = 2(l + w), you need to isolate the variable l by dividing both sides of the equation by 2 and subtracting 2w from both sides.

Step-by-step explanation:

The formula for the perimeter of a rectangle is P = 2(l + w). To solve for l, we need to isolate the variable l. Here's how:

1. Distribute the 2 to both terms inside the parentheses: P = 2l + 2w
2. Subtract 2w from both sides of the equation: P - 2w = 2l
3. Divide both sides of the equation by 2: (P - 2w)/2 = l

Therefore, the correct answer is a) l = (P/2) - w.