SOLUTION: if i have 67% in math and the final exam is worth 30%, what grade do i need in the final exam to get a 50 in the whole subject?

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 Click here to see ALL problems on Average Question 260879: if i have 67% in math and the final exam is worth 30%, what grade do i need in the final exam to get a 50 in the whole subject?Answer by drk(1908)   (Show Source): You can put this solution on YOUR website!70% is done and you currently have 67%. multiply these to get 46.9 You want a 50 which means you need 3.1 more points, so we set up a proportion as 30/50 = 3.1/x cross multiply to get 30x = 155 divide to get x = 5.166 but 5.16666/50 = 10.33% so, you need 10.33% on the final to get 3.1 points which would = 50.