Explanation:
Given:
- Total distance is 500 km
- Total time is 5 1/2 h
- The distance travelled at 100 km/h is x
- The distance travelled at 80 km/h is y
We know that:
Considering all the info we can make below chart:
Nikolas' car trip
| at 100 km/h | at 80 km/h | Total |
Distance | x | y | 500 km |
Time | x/100 | y/80 | 5 1/2 h |