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6th grade

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the sum of two decimals numbers is 3.9. Their diffrence is 0.9, and their product is 3.9. What are the two numbers

  • 6th grade - ,

    first represent unknowns using variables:
    let x = first decimal
    let y = second decimal
    then set up equations using conditions given:
    (1) x + y = 3.9 (according to first statement)
    (2) x - y = 0.9 (according to second statement)
    (3) xy = 3.9

    i think there's something wrong here because you have more equations than unknowns,, please check your typing.

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