Home > MC1 > Chapter 9 > Lesson 9.3.3 > Problem 9-151
Unit rate is defined as rate with a denominator of
In addition, the number of seconds it takes her to run each meter can be calculated as
An ice skater covered
meters in seconds. Find his unit rate of speed in meters per second. meters per second
A train in Japan can travel
miles in hours. Find the unit rate of speed in miles per hour.
Follow the steps in part (a) and in the example above.
Alaska has a very low population density. It only has
people in square miles. Find the unit rate of density in terms of people per square mile.
people per square mile.
New Jersey has a very high population density. It has
people per square mile. If Alaska had the same population density as New Jersey, what would be the population of Alaska? Solve with a proportion. (By the way, there were about people in the United States as of the year 2009.)