This is probably a simple math question and yet I'm struggling to understand it, any help would be extremely appreciated.
Say if I have 2 test results,
50% on Test 1, test worth is 10% of final grade
50% on Test 2, test worth is 30% of final grade
and then I want to know:
____% on Test 3, test worth is 60% of final grade, if I want to get 50% in the course
^ I am about to take a third and final test. I am trying to write a formula where you can calculate the percent needed to pass.
I have tried:
(0.6 * Desired score of 0.50 + (1 - 0.6) * current grade), but I'm unsure how to calculate my current grade using the first two test results for use in a formula. Thanks!
50% on Test 1 amounts to 0.5 x 10% of the overall grade = 5%.
50% on Test 2 ...... 0.5 x 30% = 15%.
Thus, from test 1 and 2 you have a total of 20%
if you want 50% overall, then you need to get a contribution of 50-20=30% from the final assessment.
30% from something that is worth 60% is just 30/60 = 50%.