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January 31, 2015

January 31, 2015

Posted by **Saraphina** on Wednesday, February 13, 2013 at 7:30am.

- Algebra -
**Reiny**, Wednesday, February 13, 2013 at 9:31amlet the number of cats be 12x

let the number of dogs be 9x

12x - 9x = 4

3x=4

x = 4/3

number of cats = 12x = 12(4/3) = 16

number of dogs = 9(4/3) = 12

for a total of 28 cats and dogs.

check:

16:12 = 4:3 or the given 12:9

cats - dogs = 16-12 = 4 , thus 4 more cats than dogs

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