Skip's Dog Shelter rescues collies. 3/4 of the collies are older than 10, and 1/3 of the remaining collies are between 3 and 5. Suppose there are 2 dogs between the ages of 6 and 10. How many dogs are there in all at this rescue shelter?

Correct answer:

n =  12

Step-by-step explanation:

43 n+31 (n43 n)+2=n  3/4 n+1/3 (n3/4 n)+2=n  2n=24  n=224=12  n=12

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