Answer:
71%
Step-by-step explanation:
Here´s how I do average scores
68 to 90
the difference in the numbers is =
90 - 68 (just a tip, subtract the highest number from the lowest number) =
22/2 will give you 11 and the reason I do this is to compare all the other numbers
11 + 68 or 90 - 11 =
79
72 to 85
85 - 72
13/2 = 6.5
72 + 6.5 or 85 - 6.5
78.5
since grades are rounded to the nearest tenth
79 - 79
79%
so he needs a 75% average to pass
79 - 75 = 4
75 - 4 = 71
The minimum score is 71%
