Question

To receive a grade A, the average of four 100-point exams must be 90 or better. If a student received scores of 89, 82, and 94 on the first three exams, what minimum score does he need on the fourth exam to earn an A?

Answer 1

i did it on paper i agree with the other guy

Answer 2

(89 + 82 + 94 + x) / 4 > = 90
(265 + x) / 4 > = 90
265 + x > = 90 * 4
265 + x > = 360
x > = 360 - 265
x > = 95.....the student would have to make a minimum of 95