Mike is taking a math class where there are 5 chapter tests and a final exam. The chapter test average is equal to 80% of the final course grade and the final exam is worth 20% of the final course grade. The grading scale is :

A = 90% to 100%

B = 80% to 89%

C = 70% to 79%

D = 60% to 69%

F = 0% to 59%

At this point, Mike earned the following grades on his chapter tests.

90% 88% 92% 91% 75%

What does Mike need on his final exam to earn an A in the course?

PART 1 DEFINE VARIABLES

PART 2 SET UP PROBLEM

PART 3 SOLVE PROBLEM

PART 4 SUMMARY STATEMENT