SOLUTION: Your average score on four exams is 82. If your professor drops the lowest exam score then your average will be 86. What was the lowest score?

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Question 328741: Your average score on four exams is 82. If your professor drops the lowest exam score then your average will be 86. What was the lowest score?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28A%2BB%2BC%2BD%29%2F4=82
1.A%2BB%2BC%2BD=328
Let A be the lowest grade.
%28B%2BC%2BD%29%2F3=86
2.B%2BC%2BD=258
Substitute eq. 2 into eq. 1,
A%2B258=328
A=70
The lowest grade was a 70.