Homework story problem

Question

in your class, you have scores of 88, 90, 79, and 93 on the first for a five test. To get a grade of B, the average of the first five test scores must be greater than or equal to 80 and less than 90. What score do you need it if the fifth test counts as to test

Answer 1

(88 + 90 + 79 + 93 + 2F)/6 =

(178 + 172 +2F)/6 = (350+2F)/6 = 80

480 = 350 +2F

2F = 480-350 = 130

2F= 540-350 = 190

F = 95

2F =420-350 = 70

F =35

F = 65 or more will get at least a B final grade if the final exam counts for 2 test grades

65< F < 95 will get a B

F = 95 or more gets an A

F = 35 to 65 will get a C

F = 10 to 35 will get a D and pass

less than a 10 will get an Failing Grade