In Miami, the number of highway accidents increased by 20% over a four year period. How many accidents were there in 2013 if there were 5,120 in 2009?
In 2013, there would have been 6,144 accidents in Miami, calculated as follows:
Number of accidents in 2013 = Number of accidents in 2009 + 20% increase
Number of accidents in 2013 = 5,120 + (0.20 * 5,120)
Number of accidents in 2013 = 5,120 + 1,024
Number of accidents in 2013 = 6,144
Therefore, there were 6,144 accidents in Miami in 2013.