Final answer:
A ratio with a unit rate of 3 means that for every 1 unit of the first quantity, there are 3 units of the second quantity. So, any ratio that can be simplified to 1:3 or 1/3 would have a unit rate of 3.
Step-by-step explanation:
A ratio with a unit rate of 3 means that for every 1 unit of the first quantity, there are 3 units of the second quantity. So, any ratio that can be simplified to 1:3 or 1/3 would have a unit rate of 3.
For example, if we have a ratio of 2:6, we can simplify it to 1:3 by dividing both sides by 2. This means that for every 1 unit of the first quantity, there are 3 units of the second quantity.
Similarly, if we have a ratio of 4/12, we can simplify it to 1/3 by dividing both sides by 4. Again, this means that for every 1 unit of the first quantity, there are 3 units of the second quantity.