Question

During a thunderstorm 600 millimeter of rain fell in 30 minutes how fast did the rain fall in millimeters per hour a) How fast did the rain fall, in millimeters per minute?b) How fast did the rain fall,in millimeters per hour?c)Construct Arguments Which unit rate do you think is more useful? Explain your reasoning

Answer 1

a) rate = 20 millimeters per minute

b) rate = 1200 millimeters per hour

Step-by-step explanation:

The length of the rain = 600mm

time taken = 30 minutes

a) To find the rate in millimeters per minute, we apply the rate formula

rate = length of rain/time

rate = 600/30

rate = 20 millimeters per minute

b) rate = length of rain/time

to get the rate in millimeters per hour, we convert from minutes to hour.

60 minute = 1hour

30 minutes = 30/60 = 1/2 hour = 0.5 hour

rate = 600/0.5

rate = 1200 millimeters per hour

c) For the argument, we can go for either of the two. The reason will differnciate the choice.

The unit rate do you think is more useful: 20 millimeters per minute

Reason:

This is a unit of speed. It tells us the rate at which the rain is falling in minutes compared to the other unit in hour. It takes a shorter time to get the rate of the rain fall at each time interval when using this unit.