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math

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solve if x=student price and y =adult price and 2y + 5x=77 and 2y + 7x=95 what are the price for admission for both adult and child

  • math -

    subtract them:
    2x = 18
    x=9
    sub into the first:
    2y + 45 = 77
    2y = 32
    y = 16

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