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anonymous

  • 5 years ago

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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  1. shadowfiend
    • 5 years ago
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    Can you try to make this information into two equations?

  2. anonymous
    • 5 years ago
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    not really. I don't know where to begin

  3. shadowfiend
    • 5 years ago
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    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?

  4. anonymous
    • 5 years ago
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    I am still stuck

  5. shadowfiend
    • 5 years ago
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    Well, what is the perimeter of a rectangle?

  6. anonymous
    • 5 years ago
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    l+w=16 ?

  7. shadowfiend
    • 5 years ago
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    Exactly. (16 cm, in this case.)

  8. anonymous
    • 5 years ago
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    ok. then what do I do?

  9. anonymous
    • 5 years ago
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    w+2cm+w=16cm?

  10. anonymous
    • 5 years ago
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    is that right so far

  11. shadowfiend
    • 5 years ago
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    Sorry, yes, that's right.

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