Fermin051505 Fermin051505

01-08-2016
Mathematics

contestada

Find the missing number _____:7 = 12:21 A. 4 B. 12 C. 3 D. 14

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dalendrk dalendrk

01-08-2016

___ : 7 = 12 : 21

21 : 7 = 3
12 : 3 = 4

_4_ : 7 = 12 : 21

check
4 · 3 = 12
7 · 3 = 21

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