calculate sophia final grade

Question

worth grade
20%   A
20%   A
30%   C
30%   D

Answer 1

 

  

No we need the actual grades. For example, grade of A can be any score between 90-100%

 

I will assume to lowest grade possible for each category.

That will give a WORST CASE estimate.

 

Suppose there are 100 points total.

 

The first assignment with 20% of the grade is worth 20 points.

She got an A which we will assume is 90%. So 90% of 20 = 18

So she scores 18 out of 20 on the first assignment, or 90%=A.

She earns 18 points so far.

 

The exact same is true for the second assignment.

She earns another 18 points, for a total so far of 36.

 

For the third assignment, she scored 70% of 30 = 21.

That is, she got a C which we will assume is 70%. So 70% of 30

is 21. So she scored 21/30 = 70% = C. She earns another

21 points. The total is now 36+21 = 57

 

On the last assignment, we will assume she scored 60%=D.

60% of 30 = 0.6 x 30 = 18. So she scored 18 out of 30

which is 60%=D. She earned 18 points, for a total of

 57+18 = 75

 

Her final grade is 75 out of 100 = 75/100 = 75% = C

So her final grade is AT LEAST 75%=C.

Until we know the REAL grades, this is best we can do.