Answer:
The mean is the average of all the numbers. So your answer is C. 45
Step-by-step explanation:
Add all of the numbers
0 + 10 + 30 + 30 + 40 + 50 + 70 + 80 + 95 = 405
Since there are 9 numbers, divide 405 by 9
405/9 is 45
That's your answer! I hope this helps!
Answer:
5 miles per hour
Step-by-step explanation:
Anna runs 6 1/4 miles in 1 1/4hours. What is her rate in miles per hour?
6 1/4 miles / 1 1/4 hours =
25/4 miles / 5/4 hours =
5 mph or miles per hour or miles/hour
4x - y = 61
2y = x
substitute x = 2y in first equaation:-
4(2y) - y = 61
7y = 61
y = 61/7
so x = 2 * 61/7 = 122/7
y = 8 5/7 and x = 17 3/7
Answer:
(4.0x - 12)i . (5/3)i
Step-by-step explanation:
Potential energy = Workdone
Workdone = Force x distance
Force = F = (4.0x - 12)i N
Workdone = 20J
At x= 0
F = -12i
/F/= 12
Workdone = Force x distance
20 = 12 x distance
Distance = 20/12
= 5/3
In the vector form distance is written as (5/3)i
Since Workdone/ Energy is scalar, U can be expressed as a dot product of the vectors of Force and distance :
(4.0 x - 12)i . (5/3)i
