Problem
(3) Richard is planning a course for a running event. He is required to post the distance of the course and miles and kilometers. If the course Richard plans is 6.8 miles, how many kilometers is the course (rounded to the nearest tenth)? \( (1 \) mile \( \approx 1.6 \mathrm{~km} \) )
Solution
Step 1 ：\( 6.8 \) miles \( \times 1.6 \mathrm{~km/mile} \)
Step 2 ：\( 10.88 \mathrm{~km} \)
Step 3 ：\( \approx 10.9 \mathrm{~km} \)
