A local humane society houses 300 animals the ratio of cats to all animals is 7 : 15. Write a proportion that gives the number of cats.b. How many cats are in the humane society
If we have 300 animals total, and the ratio of cats to all animals is 7 : 15 or 7/15, we can multiply that fraction/ratio by the total, so 300 * 7 /15 = 20 * 7 = 140.