SOLUTION: there are 10 times more ants than mice and 4 times more mice than chickens. All together they have 1,806 feet. How many chickens are there? Please show all work

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Let number of ants
Let = number of mice
Let = number of chickens
given:
(1)
(2)
(3)
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Substituting (2) in (1):
(1)
(1)
Now substitute (1) and (20 in (3):
(3)



There are 7 chickens
check answer:
(2)

and
(1)

so,
(3)



OK