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Mathematics, 12.03.2020 18:28 ybetancourt1

Find the missing number in each data set, with the mean given.
(Work must be provided for the mean)

Mean = 7.8 | 5, 8, __, 12, 3
Mean = 12 | 9, 12, 15, 21, 4, __
Mean = 74.5% | 91%, 77%, 56%, __, 76%, 61%, 98%, 89%

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(Work must be provided for the...
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