Question 566416: A stuent received scores of 51, 79, and 57 on their first three tests for a class. There will be a total of four tests for the class and the student hopes to acheive and average score of n in the class. Express the score, S, needed on the fourth test to acheive this average, as a function of n.
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! A stuent received scores of 51, 79, and 57 on their first three tests for a class.
There will be a total of four tests for the class and the student hopes to acheive and average score of n in the class.
Express the score, S, needed on the fourth test to acheive this average, as a function of n.
:
 = n
s + 187 = 4n
s = 4n - 187
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