I have a final exam next week which im nervous about. My current grade is an 80 and the final is worth 10% of my current grade. if i make a 60 what would my grade be
Grade = (0.9)(80%) + (0.1)(60%) = 72% + 6% = 78%
You'd only lose 2% - down to 78% from 80%. But even if you get a zero, the lowest your grade can go is 72%. Better to pass though and keep or improve that 80%.