SOLUTION: How do You Solve this equation
A student has earned scores of 87,81 and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of exactly 87, what score m
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Question 164450: How do You Solve this equation
A student has earned scores of 87,81 and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of exactly 87, what score must be earn on the fourth test?
a.85
b.86
c.87
d.92
e.93
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
You are given 3 scores and asked to find a fourth that results in an average of 87.
The easiest way to go is :
Let X be the fourth test score
better get studying to Ace that thing
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