keke6361
12.07.2019 •
Mathematics
The average test score of three students in a class is 81 percentage points. if one student's score goes up by 2 percentage points, one student's score goes up by 4 percentage points, and the other student's score remains the same, what will the new average test score be
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Ответ:
To the find average of the test scores, we need to find the mean.
To find the mean, all we need to do is add up all the numbers and then divide the answer by how many numbers there are
81 + 83 + 85 = 249
249 ÷ 3 = 83
Therefore, the new average is 83
Hope this helps
Ответ:
x+x=2x
3/3=1
6/3=2
1+2=3
hope this helps