Question

a students course grade is based on one midterm that counts as 10% of his final grade, one class project that counts as 10% of his final grade, a set of homework assignments that counts as 40% of his final grade, and a final exam that counts as 40% of his final grade. his midterm score is 82, his project score is 85, his homework score is 93, and his final exam score is 68. what is his overall final score? what letter grade did he earn (a, b, c, d, or f)? assume that a mean of 90 or above is an a, a mean of at least 80 but less than 90 is a b, and so on. his overall final score is (type an integer or a decimal. do not round.) his letter grade is

Explanation:

Step1: Calculate weighted mid - term score

Multiply mid - term score by its weight. The mid - term score is 82 and its weight is 0.1. So, $82\times0.1 = 8.2$.

Step2: Calculate weighted project score

Multiply project score by its weight. The project score is 85 and its weight is 0.1. So, $85\times0.1=8.5$.

Step3: Calculate weighted homework score

Multiply homework score by its weight. The homework score is 93 and its weight is 0.4. So, $93\times0.4 = 37.2$.

Step4: Calculate weighted final exam score

Multiply final exam score by its weight. The final exam score is 68 and its weight is 0.4. So, $68\times0.4=27.2$.

Step5: Calculate overall final score

Sum up all weighted scores. $8.2 + 8.5+37.2 + 27.2=81.1$.

Step6: Determine letter grade

Since $80\leq81.1<90$, the letter grade is B.

Answer:

His overall final score is 81.1
His letter grade is B