Seudónimo Seudónimo

19-03-2017
Mathematics

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One half of a number added to two thirds of the number is 21. Find the number and show your work

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Аноним Аноним

19-03-2017

The number would be 18.
Half of 18 = 9
Two thirds of 18 = 12
9 + 12 = 21

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