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Math (12th)

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What is the common difference in the arithmetic sequence 30, 27, 24, 21, 18, ...

  • Math (12th) - ,

    Have you tried subtracting?

  • Math (12th) - ,

    Thank you. I tried that and got 3 :)

  • Math (12th) - ,

    Right.

  • Math (12th) - ,

    algebra2

  • Math (12th) - ,

    -3

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