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March 30, 2017

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Make a conjecture about the next item in each sequence.
1.4,6,9,13,18

-I know that from 4 to 6 they added 2 and then from there each time the number you add is 1 more than the last one, but I don't know how to make a conjecture. Thanks

  • Math - ,

    9 + 4 = 13
    13 + 5 = 18
    18 + 6 = ?

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