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

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> 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      Log On

Hi

.80*85% + .20x ≥ 90% 

           x ≥ 22/.2 

           x ≥ 110%