**1. What is a rate?**

A rate is the comparison of two

DIFFERENTtypes of units. e.g. km/hr or m/s

**2. How are rates changed to different units e.g. 80 km/h to km/min?**

A conversion factor is involved. i.e. Divide by 60 as there are 60 minutes in an hour.

**3. Do rates always involve time?**

No. A rate can involve any two types of quantities. e.g.earnings can be measured in $ per person