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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
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OpenStudy (shadowfiend):
Can you try to make this information into two equations?
OpenStudy (anonymous):
not really. I don't know where to begin
OpenStudy (shadowfiend):
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
OpenStudy (shadowfiend):
Well, what is the perimeter of a rectangle?
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OpenStudy (anonymous):
l+w=16 ?
OpenStudy (shadowfiend):
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
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OpenStudy (shadowfiend):
Sorry, yes, that's right.
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