SOLUTION: A mean average of 80 or greater for five exams is neededfor a final grade of B. Jorge Rivera's first four exam grades are 73,69,85 and 80. What is the lowest grade that Jorge needs

Question 903597: A mean average of 80 or greater for five exams is neededfor a final grade of B. Jorge Rivera's first four exam grades are 73,69,85 and 80. What is the lowest grade that Jorge needs on the fifth exam to get a B in the course?
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
Five exams at 100 points per exam = 500 total points available.
80% of 500 = 400 points needed for a B
So far, Jorge has 73+69+85+80, or 307
400 needed - 307 already scored = 93 necessary for a B.
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