Katie said, the ratio of people to pets in my family is 2 to 1. for every two people we have one pet. if her family has three pets, how many people are in the family?

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

The first one is correct