Number eight would be 30 and number nine would be $6
Answer:
76 on second exam, 80 on third exam
Step-by-step explanation:
First, find the total of all 3 test scores by multiplying the average by the number of elements. 81 · 3 = 243.
The first score is 83 so 243 - 83 = 160. 160 is the other two test scores combined.
To find the other 2 scores, divide 160 by 2, which is 80.
The second score is 4 less so it will be 76. The third score is 80.
65%
There are only 7 numbers that don't fit this criteria. Therefore, there are 13 that do. 13/20 = .65*100 = 65%
Answer:
(6,9)
Step-by-step explanation:
If you're looking for the <em>other</em> endpoint, y goes up by 7 between these two points, so to get from (6,2) 2+7 is 9.