SOLUTION: student has a cumulative 85% grade that counts for 80% of her final grade going into finals. What percent grade does she need on her final (20% of her grade) to score above 90% for

Question 874155: student has a cumulative 85% grade that counts for 80% of her final grade going into finals. What percent grade does she need on her final (20% of her grade) to score above 90% for her total cumulative grade
Found 2 solutions by ewatrrr, Alan3354:
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

Hi
.80*85% + .20x ≥ 90%
x ≥ 22/.2
x ≥ 110%
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
85*80 + G*20 = 100*90
G = 110 to get 90
>110 to get above 90

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