SOLUTION: Miguel scored 78,92,88 on three math exams what must his average be on the next two exams so all his five exam can have an 80 for an overall score
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Question 831965: Miguel scored 78,92,88 on three math exams what must his average be on the next two exams so all his five exam can have an 80 for an overall score
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
78 + 92 + 88 +2x = 80*5 (5 exams)
258 + 2x = 400
Subtract 258 from each side
2x = 142
Divide each side by 2
x = 71
.
Miguel must score an average of 71 on each of the next two exams.
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