Question

Jana ran the first 312 miles of a 5-mile race in 13 hours. What was her average rate, in miles per hour, for this first part of the race? Explain how you solved the problem.

Answer 1

speed = distance / time

Jana's speed is

speed = (3.5 mi)/(1/3 h) = 3*3.5 mi/h = 10.5 mi/h