document.write( "Question 1106954: Aura took three biology exams and has an average score of 89. Her second exam score was 10 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 #721960 by Boreal(15235) You can put this solution on YOUR website! Average is total/n \n" ); document.write( "89*3=267 total points \n" ); document.write( "x first exam, x+10 second, and x+11 is third \n" ); document.write( "3x+21 is total=267 \n" ); document.write( "3x=246 \n" ); document.write( "x=82 on first exam \n" ); document.write( "92 on secod \n" ); document.write( "93 on third \n" ); document.write( "82 is 7 below the average, 92 is 3 above, 93 is 4 above, so checks. \n" ); document.write( " |