Answer:
90/100 or 81.8%
Explanation:
w = 0,1 , then your grade will be 81
It depends upon how many total points are available and what the zero was out of possible points. If you have a 90/100 and a 0/100, that gives you a 45%, which is failing. If you have 90% of 1000 points and get a 0/100, that will land you with an 81.8%.