If a midterm counts for 20% of your average for a certain subject, how many points of the grade go up or down?

Question

For example, I have a 90 average in social studies. My midterm grade is a 100, which counts for 20% of my grade, how points does my average go up?

Answer 1

The course isn't over yet. so you can't use 100 as a guideline. but you can use 20% by dividing it into what percent of the course you have completed.

for example, say you have
90 homework average and homework is worth 30%
94 quiz average and quizzes are worth 20%
100 for midterm at 20%

and a yet to be taken final exam for 30%...so right now you only know 70% of your score (with other quizzes and homework to come, but still, you know what those scores are currently).

now you would say...
30/70 * 90 (homework)
plus
20/70 * 94 (quiz)
plus
20/70 *100 (midterm)
equals your grade

I don't have a calculator on me but you see how it works, right?

Also, here is another trick to use. Say it is the end of the semester and you do know what your grade is except for the final exam. Then whatever percent your final is worth, for every 10 points above or below your current average, you will deduct a tenth of what your final is worth.

Sounds confusing but it really is not
For example, say you have a 90 going into the final and the final is worth 30%. For every 10 points above or below your 90 average, you will add or subtract 3 points. So if you get a 100 on the final at 30%, it will raise your grade to 93. If you get a 80 on the final exam at 30%, it will lower your grade to an 87.

If the final was worth 40%, then a 10 point lower final exam score would drop you to an 86 and a 10 point higher final exam score would raise you to a 94.

Keep in mind that this trick only works for the final exam which will complete your scores (make everything 100%)...you can't do this with a midterm because, again, you don't have all of your grades in and you are dividing by 70 (or 60 or 50 depending on how your teacher grades) instead of 100.

Hope this helps.

Answer 2

If the course was completed now you would have a 92 (that is if the 90 average made up the entire 80% that is not the midterm)
I got to this answer by:
100 x .20 = 20 (grade on exam x percent of grade = points)
90 x .80 = 72 (average grade x percent of grade = points)

then add the two answers 20 + 72= 92


This website explains in greater detail and has good examples:
http://oncampus.richmond.edu/academics/education/projects/webunits/math/gpred.html

Answer 3

Once again, it looks like a lot of people are trying to give simple, blanket answers to a problem that is a bit more complex. Although, a couple people have it right.

It sounds like you want to know your average NOW, correct?

It's hard to tell without knowing more. How much of your grade does that 90 represent? How much of your grade has yet to be done?

You may have a 90 average, but if that 90 represents only 5 percent of your final grade, then the 100 on your mid-term would make your average 98. (100 x .20) + (90 x .05) = 24.5 out of a possible 25 points of your final grade. 24.5 / 25 = 98%

If that 90 percent represents the entire other 80 percent of your final grade, then your current average would be 92. (100 x .20) + (90 x .80) = 92 (your final grade)

One way to look at it is this.....for every 5 points you get on your mid-term, that counts as 1 point of your total grade.

In order to give you an answer, we would have to know how much of your grade that 90 represents.

Answer 4

It depends on what percent of the grade your 90% average counts for.

For example: If your final is worth 50% of your total grade and you midterm is worth 20%, that means all other work is worth 20%.

Multiply the value of you 90% times the value of it in the class.
90x 3 (example)=270
100x 2= 200
total points 470 --- 470 divided by 5
94%

It is all dependant on the value of the 90% you had prior to the midterm.

Answer 5

current grade = 80% of total grade = G1
test = 20% of total grade = G2

g1*.80+G2*.20= final grade (after test)

in your example (from 90) 92 is the max grade and if you get a 100, 72 is the minimum grade if you get a 0

if you were starting with an 80 and 84 woudl be the max grade the points up depends on where you start. if you had 0 you could get a 20 total grade with a perfect final. If you already have a 100 an final of 100 make s no difference. therfore the range it can raise of lower is from 0 to 20 depending on where you start

Answer 6

Think of it like this:

Mid-Term Points: 20 possible
All Other Points: 80 possible.

Earned Mid-Term Points: 100% of 20 = 20
Earned Other Points: 90% of 80 = 72
Total Earned Points = 20+72 = 92.

NOTE: This assumes you're final is lumped in with ALL OTHER POINTS, and that you get 90% on ALL remaining tests, quizzes, homeworks, and the Final.

Answer 7

that means that your entire class is worth 500 points since 100/500 is 20%.
If you get a perfect score your grade will be a 98%
if you get a B on the test it will lower your grade to an 88%
if you get a C on the test you'll go down to a 82%
if you get a D your grade will go down to a 75% i
f you get an F it will go down to a 60%.
If you don't take the test your grade will be at a 49%

Answer 8

from B to B- or B+ is 20%

Answer 9

It depends on how many total points are available for the class.
The best thing to do (I would think) is to add up your points for each assignment so far and determine how your grade is 90%. It will help your math skills, and you will know how to do this in the future.

Good luck!

Answer 10

It depends on how much percentage you recieved in each assignment not your average score. If I have the percent you've completed then I will be able to calculate the rest.