What grade do I need to score on my Chemistry final to pass with a B?

Question

I currently have 733/1100 points in my Chem class. (NOTE THIS DOESN'T INCLUDE FINAL)
(76.7% according to teacher's gradebook)

Here's his grading system:

90%= A
75%=B
60%=C
50%=D

The final is out of 150 points, what do I NEED to score to keep my grade at a B if the final is worth 14% of my grade?

Answer 1

Hello, Em!

 

If we consider the total number of points possible, 1100, all we have to do is set up an equation which follows:  x/1100=.75

 

We are saying a total number of points (x) out of the complete total, 1100, is equal to a grade of 75% (lowest B).

 

So, x/1100=.75 => x=.75(1100)=825.

 

You'll need 825 points after the final to keep a B.

 

You already have 733, so you'll need to get 92/150 points on the final.

 

Good luck!