Question 221949
<font face="Garamond" size="+2">


Let *[tex \Large x] represent the score for each of the 4 rounds where the score was the same.  Then *[tex \Large x + 10] is the score for the 5th round.  The average score is the sum of the scores divided by 5, so:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{x+x+x+x+(x+10)}{5}=\frac{5x+10}{5}=83]


Just solve for *[tex \Large x]



John
*[tex \LARGE e^{i\pi} + 1 = 0]
</font>