anthony is maintaining an average grade of 85 in his mathematics subject. what will be his 4th grading grade if he got 83, 86 and 84?
pls show solution when answering, I will be reporting nonsense answers
pls show solution when answering, I will be reporting nonsense answers
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Anthony needs to get 87 in his 4th grading grade.
Explanation:
1st grading grade: 83
2nd grading grade: 86
3rd grading grade: 84
4th grading grade(x): ?
n = 4
Average = Sum of n numbers / n
85 = 83 + 86 + 84 + x
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4
85 = 253 + x
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4
340 = 253 + x
x = 340 - 253
x = 87
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