Margy02 Margy02

26-10-2016
Mathematics

contestada

solve using cross pruduct: 7/4 = 21/x

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Аноним Аноним

26-10-2016

7/4 = 21/x
7x = 21*4
7x = 84
x = 84/7
x =12

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Аноним Аноним

27-10-2016

21/3 should ne the answer

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