SOLUTION: to earn a B in a course, a student must at least get a 80 average on four tests and a final exam, with the final exam weighted twice that of any one test. If the four test scores a

Question 986103: to earn a B in a course, a student must at least get a 80 average on four tests and a final exam, with the final exam weighted twice that of any one test. If the four test scores are 82, 71, 88, and 78, what is the lowest the student can earn on a final and still get a B in the course?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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The sum of the six scores (4 tests + 2 x final) must be (6 x 80=) 480 to earn a B.
Current sum:
82+71+88+78=319
Total needed-current=2 x score on final
480-319=2(Final)
161=2(Final)
80.5=Final
ANSWER: The student must score at least 80.5 on the final to average 80.
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