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

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

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Asked 10/2/2018 7:05:01 PM

Updated 189 days ago|5/24/2020 2:58:02 AM

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4:7 = 12:21

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

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

Added 189 days ago|5/24/2020 2:58:02 AM

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