SOLUTION: In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, frank has scored 86,76, and 77 on the first three. What range o

Question 1045887: In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, frank has scored 86,76, and 77 on the first three. What range of scores on the fourth test will give Frank a B for the semester?(An average between 80 and 89 inclusive)
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
4 x 80=320
86+76+77=239
320-239=81
Frank needs to score at least 81 on the last test to average a B in the course. ☺☺☺☺
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