SOLUTION: adam tried tocompute the average of his 7 test scores. He mistakenly divide the correct sum of all of his test scores by 6 wich yielded 84. What is adams correct average test score

Question 88839: adam tried tocompute the average of his 7 test scores. He mistakenly divide the correct sum of all of his test scores by 6 wich yielded 84. What is adams correct average test score?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Let x represent the sum of his scores. So when he divides the sum by 6 he gets:

Now multiply both sides by 6

Multiply

So the sum of his scores is 504. Now divide 504 by 7 to find the correct average:

So the correct average is 72
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