SOLUTION: Tate scored 5 points higher on his midterm and 13 points higher on his final than he did his first exam. If his mean score was 90 what was his score on the final exam?

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Question 1196964: Tate scored 5 points higher on his midterm and 13 points higher on his final than he did his first exam. If his mean score was 90 what was his score on the final exam?
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.

x = score on the final exam.


Your equation is, OBVIOUSLY,

    %28x%2B%28x%2B5%29+%2B+%28x%2B13%29%29%2F3 = 90.


Simplify and find x

   x + (x+5) + (x+13) =270

   3x = 270 - 5 - 13 = 252.

    x                = 252/3 = 84.    ANSWER    (The typo is just fixed - thanks to tutor @greenestamps)

Solved, with full explanation.



Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


For tutor @ikleyn....

You need to fix a typo in your final answer....