Answer:
Step-by-step explanation:
The unit rate for millimeters per minute is 20 millimeters per minute because 600 millimeters / 30 minutes = 20 millimeters per minute.
It would be useful to know this unit rate in a situation where it is important to be able to accurately predict the amount of rainfall that will occur within a certain time frame. For example, if a meteorologist is forecasting the weather and needs to predict how much rain will fall during a specific time period, they would need to know the unit rate of rainfall in order to make an accurate prediction. This unit rate would be useful because it would allow the meteorologist to accurately predict the amount of rain that will fall in a given time period, which is important for planning and preparing for potential flooding or other weather-related hazards.