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math

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Lexi and Marie had $250 altogether. After Lexi spent 2/5 of her money and Marie spent $40, they had the same amount of money left. how much money did Lexi have in the beginning ?

  • math - ,

    let x = amount of money of Lexi
    let 250 - x = amount of amount of Marie
    then set up the equation:
    x - (2/5)x = 250 - x - 40
    (3/5)x = 210 - x
    (3/5)x + x = 210
    (8/5)x = 210
    x = 210*(5/8)
    x = $ 131.25 (Lexi's money)
    250 - x = 118.75 (Marie's money)

    hope this helps~ :)

  • math - ,

    $100

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