math

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On a farm ,the ratio of cows to chickens to horses is 2 to 7 to 3. There are 8 fewer horses than chickens on the farm.How many total animals are on the farm?

• math -

If their numbers are x,y,z, then we know

x/y = 2/7
x/z = 2/3
z = y-8

x+y+z = 24

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