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27 August, 05:57

barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead, and so on. Write the numbers for the first eight beads that are white. What is a rule for the pattern?

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  1. 27 August, 06:31
    0
    1,5,9,13,17,21,25,29

    rule = + 4
  2. 27 August, 09:30
    0
    The first eight beads that are white are: 1,5,9,13,17,21,25,29

    The rule for the pattern is. if n is a number of bead that is white, the next number of bead that is white is n+4

    Step-by-step explanation:

    The first beads are:

    bead color

    1 w

    2 b

    3 b

    4 b

    5 w

    6 b

    7 b

    8 b

    where w refers to white and b to blue

    If n is a number of bead that is white, the next number of bead that is white is n+4. We know that the first bead is white (n = 1), then the bead n = 1 + 4 = 5 is also white. Therefore, the bead n = 5 + 4 = 9 is white and so on. The first eight beads that are white are: 1,5,9,13,17,21,25,29.
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