At 10:30 AM a passenger train in the freight train left from stations that were 405 miles apart and travel towards each other. The rate of the passenger train was 45 mph faster than that of the freight train. If they pass each other at 1:30 PM how fast was the passenger train traveling

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.