Question

a rectangle's width is twice as long as its length if the perimeter is 36 in. find its length
A 4in
B 6 in
C 8 in
D 10 in

Answer 1

That question doesn't make sense. Are you sure you wrote it right?

Answer 2

and its a rectangles width and meant to put use an algebraic expression

Answer 3

w= width
l=length
So we know that
2l=w
and we know that 2w+2l=36

Answer 4

So we can substitute 2l in for w in the second equation like so
2(2l)+2l=36
4l+2l=36
6l=36
l=6
and w=12
So 2(12) + 2(6)=36
24+12+36
36=36
So length is 6

Answer 5

thank you

Answer 6

No problem.