SOLUTION: I have 5 students tool and algebra test, the average score was 84, Four of the scores were 96.68.79 and 85. What did the 5th student score? Thanks

Question 662452: I have 5 students tool and algebra test, the average score was 84, Four of the scores were 96.68.79 and 85. What did the 5th student score?
Thanks
Found 3 solutions by MathLover1, ReadingBoosters, lynnlo:
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

let be the 5th student score

........the 5th student score

Answer by ReadingBoosters(3246)   (Show Source): You can put this solution on YOUR website!
To calculate the average use the following understanding:
average = sum of test / number of tests
In this case figure out the average with the following equation:
84 = (96+68+79+85 + x)/5
Multiply both sides by 5
420 = 328 + x
Subtract 328 from both sides
92 = x
The fifth test score was 92
Answer by lynnlo(4176)   (Show Source): You can put this solution on YOUR website!
96+68+79+85+92=420 divided by 5 test=84 average
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