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math 3rd grade

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Sam is making a necklace she uses 2 red beads, then 1 yellow beads then 2 red beads, then 1 yellow bead.

How many red beads will she use if she uses 24 beads.

The answer is 16

But the problem is we cant figure out the equation???

  • math 3rd grade - ,

    Let x = the yellow beads.

    2x + x = 24

    3x = 24

    x = 24/3

    x = 8

  • math 3rd grade - ,

    what happens if x is red beads

  • math 3rd grade - ,

    Red beads = 2 * 8

  • math 3rd grade - ,

    58375+5+96979*9

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