Answer:
Mean: 41.8
Median:41
Mode:27
Range:46
Step-by-step explanation:
Let the slower runners speed be X kilometers per hour.
Then the faster runners speed would be X+2 kilometers per hour.
The formula for distance is Speed times time.
The distance is given as 30 kilometers and time is given as 3 hours.
Since there are two runners you need to add the both of them together.
The equation becomes 30 = 3x + 3(x+2)
Now solve for x:
30 = 3x + 3(x+2)
Simplify:
30 = 3x + 3x +6
30 = 6x + 6
Subtract 6 from each side:
24 = 6x
Divide both sides by 6:
x = 24/6
x = 4
The slower runner ran at 4 kilometers per hour.
The faster runner ran at 4+2 = 6 kilometers per hour.
He earned $16 in a hour cuz he worked for 10 hours and 10x16=160
1-d
2-c
3-e
4-b
5-a
It's very simple. Try..
Answer:
B. temporary
Step-by-step explanation:
The last sentence says that the alignment of atoms does not last long.
