document.write( "Question 1043625: So far in geography class, a student's quiz scores are 86%, 84%, 76%, and 72%. What score does the student need
\n" ); document.write( "on the fifth quiz to have a mean quiz score of 81%? All the quizzes have equal weights. \n" ); document.write( "

Algebra.Com's Answer #658768 by josmiceli(19441) $\"\"$ $\"About$

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$\"+%28+.86+%2B+.84+%2B+.76+%2B+.72+%2B+x+%29+%2F+5+=+.81+\"$
\n" ); document.write( " $\"+.86+%2B+.84+%2B+.76+%2B+.72+%2B+x+=+4.05+\"$
\n" ); document.write( " $\"+3.18+%2B+x+=+4.05+\"$
\n" ); document.write( " $\"+x+=+.87+\"$
\n" ); document.write( "The student needs 87% on the 5th quiz \n" ); document.write( "

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