SOLUTION: Miguel scored 5 points higher on his midterm and 13 points higher on his final examination than he did on his first examination. If his mean (average) score was 90, find his score
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Question 799351: Miguel scored 5 points higher on his midterm and 13 points higher on his final examination than he did on his first examination. If his mean (average) score was 90, find his score on his first examination
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Solve for 
The above presumes that each of the three exams have the same weight. If they are different, then you need the weighting factors for each of the three exams and...
\ +\ w_f(x\ +\ 13)\ =\ 3\,\cdot\,90)
Solve for
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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