SOLUTION: A student must have an average (the mean) of five tests that is grater than or equal to80% but less than 90% to receive a final grade of B. Devon's grades on the first four tests

Question 283926: A student must have an average (the mean) of five tests that is grater than or equal to80% but less than 90% to receive a final grade of B. Devon's grades on the first four tests were 80%, 61%, 88 adn 77%. What range of grades on the fifth test would give him a B in the course (Assume that 100% is the highest grade possible) Enter the range of grades necessary for Devon to earn a B average ____% < x < 100%
Answer by liyah94(1) (Show Source): You can put this solution on YOUR website!

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