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07-08-2015
Mathematics

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which one of the following statement expresses a true proportion . A. 42:7=6:2 B. 3:5=12:20 C. 2:3=3:2 D. 14:6=28:18

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yrtemeog123 yrtemeog123

07-08-2015

B, because the first two numbers, 3 and 12, you can get 12 by multiplying the 3 by 4. In the next to numbers, 5 and 20, you can get 20 by multiplying 5 also by 4. Since they multiply using the same number, it is considered to be a true proportion.

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