QUESTION # 1
Answer:
- Total distance = 21 units (meters)
- The average speed = 7 meter per second.
Step-by-step explanation:
To Determine:
If the whole run took the bug 3 seconds, what was its average speed?
Information Fetching and Solution Steps:
- A beetle was running along a number line.
- The beetle ran from 4 to 25.
Let suppose each unit on a number line represents 1 meter.
As the beetle ran from 4 to 25, so
the distance covered by beetle is:
25 - 4 = 21 units. i.e. 21 meters
As the average speed can be determined by dividing the total distance by the total time, so
The average speed = total distance / total time
as
Total distance = 21 units (meters)
Total time = 3 seconds
so
The average speed = total distance / total time
= 21/3
= 7 meter per second
Therefore, the average speed = 7 meter per second.
QUESTION # 2
Answer:
- Total distance = 54 units (meters)
- The average speed = 6 meter per second.
Step-by-step explanation:
To Determine:
If the whole run took the bug 9 seconds, what was its average speed?
Information Fetching and Solution Steps:
- A beetle was running along a number line.
- The beetle ran from 24 to 78.
Let suppose each unit on a number line represents 1 meter.
As the beetle ran from 24 to 78, so
the distance covered by beetle is:
78 - 24 = 54 units. i.e. 54 meters
As the average speed can be determined by dividing the total distance by the total time, so
The average speed = total distance / total time
as
Total distance = 54 units (meters)
Total time = 9 seconds
so
The average speed = total distance / total time
= 54/9
= 6 meter per second
Therefore, the average speed = 6 meter per second.
