document.write( "Question 902012: the scores for eight students were 16, 17, 18, 20, 22, 23, 25, and 25.
\n" ); document.write( " If the mean of the scores for the nine students was 21, then what was the missing score? \n" ); document.write( "

Algebra.Com's Answer #547108 by Fombitz(32388) $\"\"$ $\"About$

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From the definition of the mean,
\n" ); document.write( " $\"%2816%2B17%2B18%2B20%2B22%2B23%2B25%2B25%2BX%29%2F9=21\"$
\n" ); document.write( " $\"16%2B17%2B18%2B20%2B22%2B23%2B25%2B25%2BX=189\"$
\n" ); document.write( "Solve for $\"X\"$ , that's the missing score.
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