To find the unit rate in kilometers per hour, divide the total distance traveled (3.4 kilometers) by the total time in hours. If the time taken is ttt hours, then the unit rate is:
Unit rate=3.4 kmt hours=3.4t km/h\text{Unit rate}=\frac{3.4\text{ km}}{t\text{ hours}}=\frac{3.4}{t}\text{ km/h}Unit rate=t hours3.4 km=t3.4 km/h
Please provide the number of hours ttt so I can calculate the exact unit rate.