Mathematics
OpenStudy (anonymous):

the lenght of a rectangle is 2 centimenters longer than its width. the perimeter is 16 centimenters. what are the lenght and width of the re

Can you try to make this information into two equations?

OpenStudy (anonymous):

not really. I don't know where to begin

Ok, so if the length is 2 cm longer than its width, we can say that: $l = w + 2\text{ cm}$ Right? What does the perimeter tell us?

OpenStudy (anonymous):

I am still stuck

Well, what is the perimeter of a rectangle?

OpenStudy (anonymous):

l+w=16 ?

Exactly. (16 cm, in this case.)

OpenStudy (anonymous):

ok. then what do I do?

OpenStudy (anonymous):

w+2cm+w=16cm?

OpenStudy (anonymous):

is that right so far

Sorry, yes, that's right.