Final grade = (current grade * % current grade is of final grade) + (final exam grade * % final exam is of final grade)Originally Posted by Nicv
The lowest final grade a person can have and still have a C is 70%, so
.7 = (87 * .75) + (x * .25)
.7 = .6525 + .25x
.0475 = .25x
x = .19
student must get at least a 19% on the final in order to get a C.