Answer:

Step-by-step explanation:

Answer:
If it took the motorcycle 2 hours to cover 20km, then the average speed is 10km per hour.
Speed is equal to distance over time. So 20km divided by 2 hours is 10 km per hour.
Answer:
Subtract by 5 on both sides.
Step-by-step explanation:
x+5 = -10. if you subtract both sides by 5, you will get x+5-5=-10-5, which can be simplified to x=-15.
Answer:
Mei took 9 more strokes than Noah
Step-by-step explanation:
HOPE THIS HELPED! ;D
Answer:
4
Step-by-step explanation:
I am not 100% sure but I really hope this helps you.