Express the perimeter P of a rectangle as a function of the width w if the width of the rectangle is twice the length..

P (?) = ?

Question

Express the perimeter P of a rectangle as a function of the width w if the width of the rectangle is twice the length..

P (?) = ?

lgbasallote · Answer

do you know the formula for perimeter of rectangle?

parthkohli · Answer

Perimeter is length + length + breadth + breadth

Perimeter = ??

parthkohli · Answer

breadth means width.

lgbasallote · Answer

wait for it....he's going to give the answer........now.....

anonymous · Answer

2l + 2w = P
so..

parthkohli · Answer

Yes, now factor.

lgbasallote · Answer

it says that width is twice the length...do you know how to interpret that statement?

anonymous · Answer

that it looks like a rectangle? thats how i interpret it

parthkohli · Answer

4w + 2l is the perimeter..

lgbasallote · Answer

"width is twice the length"  <---what does that mean?

lgbasallote · Answer

^told you he's gonna give the answer soon

parthkohli · Answer

We can also express this as the same variable

anonymous · Answer

ohhh. ok 
what he said

lgbasallote · Answer

although i do not understand what that meant

parthkohli · Answer

2x is the width
x is the length

2x + 2x + x + x is the perimeter.

anonymous · Answer

so that function will look like. P(w) =

parthkohli · Answer

Yeah, your choice