cutepanda02 cutepanda02

27-10-2016
Mathematics

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divide 33 photos into 2 groups so the ratio is 4 to 7

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erimoffitt erimoffitt

27-10-2016

4+7=11
4/11=x/33
(cross multiply and divide)
33(4)=11x
132=11x
x=12
33-12=21
Group 1: 12 photos
Group 2: 21 photos

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