Answer:
her rate in chapters per hour is:
6 chapters per hour
The median is the middle score, it is also the average of the two middle scores when total number is even.
original 3 scores: 89, 90, 95 ----> median = 90
with final score: 89,90,X,95 ----> median = 91.5
(90+x)/2 = 91.5
90+x = 183
x = 93
Final score was a 93.
Answer:
30 miles 90 miles
----------------- = -----------------------
1.5 hours 4 hours
the dashes between the number represents me making a fraction lol.
a = 46c....for c
a/46 = c
322 = 46c
322/46 = c
7 = c.....7 circuits are required