I would graph this to visualize it, and then do rise over run, or y/x to find the slope... Or you can use the formula y1-y2/x1-x2... where y1 is 8, y2 is 5, and the same with x... Hope this helps ;)
The class average would be all the test scores added up and divided by the number of scores.
5+5+1+1+1+1+1+0+0+0+0= 15
15/11=1.37
The class average is 1.37
Answer:45 mi/h
Step-by-step explanation:
Recall: Speed = distance / time
Let the time taken for the morning journey be
and the time taken for the afternoon journey be
,and the distance covered be d
that means for the first journey,
30 = 
d = 30 
Also for the afternoon journey,
d = 60 
Equating the two , since the same distance is being covered , we have
30
= 60 
that is
= 
= 2 
Also ,
total distance covered = 30
+ 60 
Average speed = total distance / total time
= 30
+ 60
/
+
Recall that
= 2
, substitute this into the formula for average speed , then we have
Average speed = 30(2
) +60
/ 3
Average speed = 120
/ 3
Therefore :
Average speed = 40 mi/hr
D beacuse a hexangon is like the shape of the circle