Question

the width of a rectangle is 12 units less than the length. the perimeter is 108 units find the length.

Answer 1

you do for the length x and width x-12

Answer 2

then do x+x+x-12+x-12=108 and add all those up subtract 24 from both sides divide the x's from both sides and you get the answer

Answer 3

Let the length = x.
Then the width should be x-12.
To find the perimeter of a rectangle 2(l*w)=Perimeter.
So you have a algebraic equation when you sub in your numbers.
2(x*(x-12))=108
Do you understand how I did that?

Answer 4

you are actually finding area if you do puddle's way

Answer 5

Whoops! Sorry. That formula should be 2(l+w)=Perimeter.
Thanks igloo :)

Answer 6

thank you

Answer 7

yes another way to say it

Answer 8

i got 33?

Answer 9

That's correct :)

Answer 10

great . thank you (: