During a family car trip, a family travels for 1 hour at 70
miles per hour. Then the family travels for 2 more hours at
55 miles per hour.
What is the family's average speed during the trip?
A. 62.5 mph
B. 65 mph
C. 58.5 mph
D. 60 mph
Step-by-step explanation: In one hour they went 70 miles, and in the next two they went 55 miles. So to find the answer you simply find the average of 70, 55, and 55 which comes out to be 60.
