So if i have a 93% in a class and i fail the final that is worth 20% of my grade about how much do you think..

Question

my grade will go down?

i dont plan on failing. Obviously i am not doing bad in the class, but i just want to see the worst that could happen.

Answer 1

.93 x .8 = 74.4

To keep an A - you will need to get a 80% (unless your teacher rounds, then a 76%)

Lets just say a 50% - you will have a 84.4 in the class.

Answer 2

Worst case:

93% = 80% of your grade

.93x.80=.744

74.4%