SOLUTION: The​ average, or​ mean, D​, of three exam​ grades, w​, r​, and v​, is given by the following formula.
D = w+r+v over 3
​(a) Solv
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D = w+r+v over 3
​(a) Solv
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Question 1119359: The average, or mean, D, of three exam grades, w, r, and v, is given by the following formula.
D = w+r+v over 3
(a) Solve the formula for v.
(b) Use the formula in part (a) to solve this problem. On your first two exams, your grades are 86% and 89%: w=86 and r=89. What must you get on the third exam to have an average of 86%? Answer by Boreal(15235) (Show Source):
