Question

Jim has the following grades: homework average is 88%, quiz average is 76%, Exam One grade was 64%, Exam Two grade was 85%, Exam Three grade was 92% and Exam Four grade was 94%. (6 pts) a) Find Jim's exam average for his four exams. b) Find Jim's weighted average if homework counts as 15% of his grade, quiz average counts as 10% of his grade, and the exam average is 75% of the grade. Show all your work.​

Answer 1

a) 83.75% or 84% rounded to the nearest percent.

b) 84%

Explanation:

`(64+85+92+94)/(4)` = 83.75 changed to a percent and rounded to the nearest percent would be 84%

.15(.88) + .10(.76) + .75(.84) = .838 changed to a percent and rounded to the nearest percent would be 84%