anonymous
  • 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
Mathematics
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SOLVED
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schrodinger
  • schrodinger
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shadowfiend
  • shadowfiend
Can you try to make this information into two equations?
anonymous
  • anonymous
not really. I don't know where to begin
shadowfiend
  • 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?

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anonymous
  • anonymous
I am still stuck
shadowfiend
  • shadowfiend
Well, what is the perimeter of a rectangle?
anonymous
  • anonymous
l+w=16 ?
shadowfiend
  • shadowfiend
Exactly. (16 cm, in this case.)
anonymous
  • anonymous
ok. then what do I do?
anonymous
  • anonymous
w+2cm+w=16cm?
anonymous
  • anonymous
is that right so far
shadowfiend
  • shadowfiend
Sorry, yes, that's right.

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