Math... word problem?
Okay, i can do these fine usually but this makes no sense and i don't even know how to start converting it into an equation
"Student grades were based on a weighted average. The final test was weighted at 4 times the weight of a weekly test. If Marion had an average of 92.4 on the 10 regular weekly tests and scored 84 on the final, what was her overall average?"
More Questions From This User See All
Answers & Comments
Verified answer
10 * 92.4 = 924 total on the weekly quizzes
84 * 4 = 336 weighted total on the final (since the final is worth 4 times a weekly test, this is like 4 separate weekly tests)
total score: 924 + 336 = 1260
14 total tests (10 weekly + weighted 4 of final)
1260 / 14 = 90
her overall average is a 90
in one equation:
overall average = [10 * 92.4 + 4 * 84] / (10 + 4) = 90