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10 July, 20:26

There are 4 Russian dolls. The largest doll is 12 inches tall. The height of each of the other dolls is 7/10 the height of the next larger doll. What expression can be used to find the height of the smallest doll?

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Answers (2)
  1. 10 July, 20:51
    0
    X = 12 (.7) ^x (exponent)

    x is the doll you are on. For example if your looking for the height of the height of the doll after the 12 in. one then x=2 and so on
  2. 11 July, 00:00
    0
    Height of doll : (7/10 of the height of doll) = size of the next doll

    or

    h: (7/10) h = n
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