Seudónimo Seudónimo

12-01-2016
Mathematics

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divide 33 photos into two groups so the ratio is 4 to 7

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Billymkhoi Billymkhoi

12-01-2016

The number of parts is:
4+7= 11

33 photos/ 11 parts= 3 photos/part

Group 1: 4 parts* (3 photos/ 1 part)= 12 photos
Group 2: 7 parts* (3 photos/ 1 part)= 21 photos

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14-01-2016

4:7
4x:7x

4x + 7x = 11x

11x = 33
x =3

4 x 3 = 12
7 x 3 = 21

So 12 and 21 are in a ratio of 4:7 and add up to 33

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