



 
Hi Edy, If the grades in 6 courses in the first semester had an average of 100 then this was calculated by
Thus the sum of the scores on the 6 courses in the first semester was 6 × 100 = 600. If the grades in 5 courses in the second semester had an average of 90 then what was the sum of the scores on the 5 courses in the first semester? What was the sum of the grades in the 11 courses over both semesters? What is their average? Penny  


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