Question

1. -/12.5 points 0/100 submissions used in your english class, essays are 40% of your grade, homework is 20% of your grade, attendance is 5% of your grade, and the final project is 35% of your grade. at the end of the semester, your essay average is 83, your homework average is 93, and your attendance average is 93. what score do you need on the final project to get an a- (90%) in the class? (round your answer to 2 decimal places.)

Explanation:

Step1: Calculate weighted essay score

$\text{Weighted Essay} = 83 \times 0.40 = 33.2$

Step2: Calculate weighted homework score

$\text{Weighted Homework} = 93 \times 0.20 = 18.6$

Step3: Calculate weighted attendance score

$\text{Weighted Attendance} = 93 \times 0.05 = 4.65$

Step4: Sum existing weighted scores

$\text{Total Existing} = 33.2 + 18.6 + 4.65 = 56.45$

Step5: Set up final project equation

Let $x$ = final project score.
$56.45 + 0.35x = 90$

Step6: Solve for $x$

$0.35x = 90 - 56.45 = 33.55$
$x = \frac{33.55}{0.35}$

Answer:

95.86