Answer:
1. 60 km/h
2. 455 km/h
3. 82.5 km/h
4. 23 km/h
5. 60 km/h
6. 5 h
7. 4 h
8. 5.5 h
9. a. 25 km/h
b. 0.416.66 km/m
Step-by-step explanation:
1-5 use the formula of d= st
example:
2 hours at 30 km/h
D= st
D= (30)(2)
D= 60 km/h
1-6 use this:
Speed = ?
Distance = ?
Speed =distance/time
Time=distance/speed
Both units of speed and distance are same so,no change in units.
example:
250 kilometers at 50 km/h
D= 250÷50= 5 h
