SOLUTION: Sonya has mean average of 77.6 on the first five of the six test.to get an overall test average of 83 what must Sonya score on the sixth test ?

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Question 1005119: Sonya has mean average of 77.6 on the first five of the six test.to get an overall test average of 83 what must Sonya score on the sixth test ?
Found 2 solutions by Alan3354, fractalier:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Sonya has mean average of 77.6 on the first five of the six test.to get an overall test average of 83 what must Sonya score on the sixth test ?
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If all tests count the same:
(5*77.6 + Test6)/6 = 83
388 + Test6 = 498
Test6 = 110
Good luck with that.
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PS "mean average" is redundant.
mean = average --> "average average"
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From The Dept. of Redundancy Dept.

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
If her mean was 77.6 on the first five tests, that says she scored
5(77.6) = 388 points so far.
To average 83 on all six tests, she would need
6(83) = 498 points total.
Thus she would need
498-388 = 110 points on the sixth test. (Hope there is extra credit!)