If thats grade is just a percentage, and the 50 is included in that percentage, the 50 lowers your grade. How much it lowers your grade depends upon how much that assignment/exam is weighted. For example, if there are 10 assignments, and you get 100 on nine of them and fifty on one of them, you end up with 95%.

That would depend on the weighting of both grades. Assuming these are assignments, a homework assignment is usually not given the same grading weight as a quiz or a test. If the 50 is on a major assignment, it could quite possibly result in your grade dropping to a D.

If both grades are weighted the, i.e. if they both count the same, then you will have a 50 in the class. This comes from averaging the 2 grades. (100 + 0)/2 = 100/2 = 50.

Let's start by assigning values to the grades: F = 0, D = 1, C = 2, B = 3, and A = 4. The average grade is equal to the sum of your grades, divided by the number of grades. If you have two grades: one A and one F has an average of (0+4)/2 = 2. Your average would be a “C”.

In some educational systems, a grade of 51 might be considered below average, while in others it might be seen as a passing grade. It's important to consider the grading scale used by your educational institution and to seek guidance from teachers or academic advisors if you have concerns about your grades.

60% is usually considered to be a “passing” grade—usually a D. So it is not a “failing” grade. It means that the student has met the requirements of the course but below the average expectations of the course. A grade of 50% or lower indicates that the student has only fulfilled half of...

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%.

A - is the highest grade you can receive on an assignment, and it's between 90% and 100% B - is still a pretty good grade! This is an above-average score, between 80% and 89% C - this is a grade that rests right in the middle.

To answer your question, an 85 % percent is typically a regular near-proportional middle ground B. Therefore, an 85 isn't a B+ or a B-, since it falls between the range of 80–89 percent.

The rationale is that 50 represents the same kind of failing grade in a 100-point scale that a 0 represents in a 0 – 4.0 grading system, in which a D is calculated as “1” rather than in the 60s, and an A as “4” rather than in the 90s.

But if you have more grades making up your 99%, then getting a zero on a 100-point assignment will hurt less. For example, if you've already taken four tests and have a 99 average, then getting a zero on the fifth test will leave you with an overall average of 79.2. (That's the average of 99, 99, 99, 99, and 0.)

45 out of 50 answers correct on a test is 90% and gives you an A- or B+ depending on the marking scale your teacher uses. 45/50=9.0 or 90%. Using the standard and most academically popular grading system, 90% would be an A.

In America, a B grade often denotes performance that is excellent to above average, but not the highest level of achievement. On a scale from A to F, with B being the second-highest grade attainable, it is typically expressed as a number figure between 80 and 89% or a letter grade.