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18 July, 21:45

Lesson Check (4.0A. A. 2)

1. Sari has 3 times as many pencil erasers as

Sam. Together, they have 28 erasers. How

many erasers does Sari have?

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Answers (1)
  1. 18 July, 22:11
    0
    Let x be how many erasers Sari has and y be for Sam's.

    x = 3y

    x + y = 28

    y = 28 - x

    x = 3 (28 - x)

    x = 84 - 3x

    4x = 84

    x = 21

    Answer: Sari has 21 erasers
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