The perimeter of a rectangle is given by the following formula: P = 2W + 2L
To solve this formula for W, the goal is to isolate this variable to one side of the equation such that the width of the rectangle (W) can be solved when given its perimeter (P) and length (L).
P = 2W + 2L
subtract 2L from both sides of the equation
P - 2L = 2W + 2L - 2L
P - 2L = 2W
divide both sides of the equation by 2
(P - 2L)/2 = (2W)/2
(P - 2L)/2 = (2/2)W
(P - 2L)/2 = (1)W
(P - 2L)/2 = W
Thus, given that the perimeter (P) of a rectangle is defined by P = 2W + 2L ,
then its width (W) is given by W = (P - 2L)/2
Answer:
(A) (7,-4) (B) (-7,4)
Step-by-step explanation:
Answer: A
Step-by-step explanation: because I had that same test last year
Answer: 5 feet
Step-by-step explanation:
Given: The total length of the rope = 35 feet
Let the length of the shorter section be x, then the longer section would be 6x.
According to the question, we have
Also,
Hence, the length of the shorter section = 5 feet
Answer:
Whats the question!?!?!? D:
Step-by-step explanation: