kellyhead0410 kellyhead0410

19-11-2018
Mathematics

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Which two ratios form a proportion A) 1/2 and 2/7 B) 2/1 and 7/14 C) 1/2 and 7/14 D) 2/1 and 14/21

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wegnerkolmp2741o wegnerkolmp2741o

19-11-2018

1/2 * 2/2 = 2/4 which is not 2/7

2/1 * 7/7 = 14/7 which is not 7/14

1/2 * 7/7 = 7/14 which is 7/14 yes

2/1 * 7/7 = 14/7 which is not 14/21 no

Choice C

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