The ratio of cats to dogs is 9 to 5. If 63 cats were present
- Thread starter superme
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What you did is just fine! 
Another method might be to note that, in 63, there are nine sets of seven, so the sets (parts) must represent sets of seven animals. Since the ratio is 9:5, then the five sets of dogs, having seven dogs each, must total thirty-five dogs.
Note: You can check your work. Does "63/35" simplify to "9/7"? If so, your ratio is correct.
Eliz.
Another method might be to note that, in 63, there are nine sets of seven, so the sets (parts) must represent sets of seven animals. Since the ratio is 9:5, then the five sets of dogs, having seven dogs each, must total thirty-five dogs.
Note: You can check your work. Does "63/35" simplify to "9/7"? If so, your ratio is correct.
Eliz.