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8. Teo makes a necklace of x wooden beads at $0.50

each and 6 glass beads at $1.25 each. The average

cost of the beads in the necklace is $0.75. Write

an equation to model the situation.

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Answers (1)
  1. 4 May, 15:59
    0
    0.5x + 7.5 / (x + 6)

    Step-by-step explanation:

    Let x be the number of wooden beads

    wooden bead = $0.50 each

    glass bead = $1.25 each

    since average cost of bead = (cost of wooden bead + cost of glass bead) / total number of beads

    equation is (0.5x + (6*1.25)) / (x + 6)

    The model equation is therefore 0.5x + 7.5 / (x + 6)
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