SOLUTION: A student has test scores of 68%, 75%, and 79% in a government class. What must she score on the last exam to earn a B in the course?

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Question 902507: A student has test scores of 68%, 75%, and 79% in a government class. What must she score on the last exam to earn a B in the course?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Find the average and compare it to the threshold for a B.
%2868%2B75%2B79%2BT%29%2F4%3E=B
222%2BT%3E=4B
where T is the final test score and B is the threshold for a B (80?).