If I have a 66% in algebra Android we took a exam that's worth 20% of our grade Android I got a 54% on the multiple choice what would my average grade be?
To calculate your average grade, you need to consider the weight of each component. In this case, the exam is worth 20% of your grade and the rest of the grade is determined by other assignments, quizzes, etc.
To calculate your average grade after the exam, you need to find the weighted average of your current grade (66%) and the exam grade (54%). Here's how you can calculate it:
Step 1: Convert the percentages to decimal values by dividing them by 100.
Current grade: 66/100 = 0.66
Exam grade: 54/100 = 0.54
Step 2: Calculate the weighted average by multiplying each grade by its respective weight.
Weighted current grade: 0.66 * (1 - 0.20) = 0.528
Weighted exam grade: 0.54 * 0.20 = 0.108
Step 3: Add the weighted grades together to find your average grade.
Average grade = Weighted current grade + Weighted exam grade
Average grade = 0.528 + 0.108 = 0.636
To convert the average grade back to a percentage, multiply it by 100.
Average grade as a percentage = 0.636 * 100 = 63.6%
Therefore, your average grade after the exam would be approximately 63.6%.