Calcuating minimal grade on final to maintain letter grade... please help...?

if you let your score on the final to be "a" (in percentage), then...

a*0.2 + 0.85*0.8 ≥ 0.8

because you're taking 20% (or 0.2) of your score on the final, and adding it 80% (or 0.8, because that's how much it's going to count for) of that grade you have right now.

0.2a + 0.68 ≥ 0.8

0.2a ≥ 0.12

a ≥ 0.6

you have to get a 60% or better. good luck.

A "D" grade is seen passing. usually speaking maximum standards for a Graduate degree state the pupil could defend a three.0 GPA. So in case you get a brilliant style of "D's" you are going to have a hard time protecting that 3.0 GPA. until eventually a particular college or application demands a three.0 (B) for each type TAKEN (and that i've got never heard or seen this), you may get away with some D's and C's provided you get adequate A's to convey your ordinary GPA as much as the three.0. I even have seen some particular classes (jointly with nursing) that require a minimum grade on a *particular* type even with ordinary GPA. as a manner to get interior the nursing application in some faculties you may get a letter grade of "B" or greater proper in Microbiology, and so on. those standards are often spelled out very specifically.