document.write( "Question 816737: Aura took three biology exams and has an average score of 87. Her second exam score was 7 points better than her first, and her third exam score was 1 points better than her second exam. What were her three exam scores? \n" ); document.write( "

Algebra.Com's Answer #491690 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi,
\n" );
document.write( "Her second exam score was 7 points better than her first, 
\n" );
document.write( "and her third exam score was 1 points better than her second exam.
\n" );
document.write( "1st Exam  x           
\n" );
document.write( "2nd Exam  x +7        
\n" );
document.write( "3rd Exam  x + 8       
\n" );
document.write( "average score of 87:  Total points for the 3 exams = 261
\n" );
document.write( "  x + (x+7) + (x+8) = 261    |Solve for x
\n" );
document.write( "           3x = 246
\n" );
document.write( "            x = 82
\n" );
document.write( "1st Exam  x           82
\n" );
document.write( "2nd Exam  x +7        89
\n" );
document.write( "3rd Exam  x + 8       90
\n" );
document.write( "CHECKING our answer***
\n" );
document.write( "  \n" );
document.write( "

\n" );