Delta drives at an average speed of 17 miles per hour through traffic. What is her speed in kilometers per hour if 1 kilometer is approximately equal to 0.62 miles? Round to the nearest tenth of a kilometer.
To convert miles to kilometers, we need to consider the conversion factor of 0.62 miles per kilometer.
Delta's speed in kilometers per hour is (17 miles per hour) / (0.62 miles per kilometer) = 27.4 kilometers per hour.
Rounded to the nearest tenth, Delta's speed is 27.4 kilometers per hour. Answer: \boxed{27.4}.