SOLUTION: On the first four exams, your grades are 77, 96, 57, and 78. There is still a final exam, and it counts as two grades. You are hoping to earn a C in the course. This will occur if

Algebra ->  Inequalities -> SOLUTION: On the first four exams, your grades are 77, 96, 57, and 78. There is still a final exam, and it counts as two grades. You are hoping to earn a C in the course. This will occur if       Log On


   

Question 663173: On the first four exams, your grades are 77, 96, 57, and 78. There is still a final exam, and it counts as two grades. You are hoping to earn a C in the course. This will occur if the average of your six exam grades is greater than or equal to 70 and less than 80. What range of grades on the final exam will result in earning a C?
Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
77+96+57+78+115=423 divide by 6 test=70.5
the only way you can have an c average is since the last test count as 2
the highest grade you can make on the exam would have to be at least 115