SOLUTION: a student receives test scores of 72,84,and 86.what score must the student receive on a fourth test so that the mean of these scores will be 85

SOLUTION: a student receives test scores of 72,84,and 86.what score must the student receive on a fourth test so that the mean of these scores will be 85

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Question 613857: a student receives test scores of 72,84,and 86.what score must the student receive on a fourth test so that the mean of these scores will be 85
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
72 + 84 + 86 + x = 85 * 4
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