document.write( "Question 885897: Use an algebraic approach to solve the problem. (Objective 2)\r
\n" ); document.write( "\n" ); document.write( "Aura took three biology exams and has an average score of 85. Her second exam score was 5 points better than her first, and her third exam score was 5 points better than her second exam. What were her three exam scores?
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\n" ); document.write( " (highest score)
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Algebra.Com's Answer #535536 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
The first, second and third scores, x, y, z, respectively.\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2By%2Bz%29%2F3=85\".\r
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\n" ); document.write( "\n" ); document.write( " Her second exam score was 5 points better than her first, and her third exam score was 5 points better than her second exam.
\n" ); document.write( "\"y=x%2B5\" and \"z=y%2B5\".\r
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\n" ); document.write( "\n" ); document.write( "A few different ways to go.\r
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\n" ); document.write( "\n" ); document.write( "The last two equations: \"x=y-5\" and \"z=y%2B5\"; substitute into the average85 equation:
\n" ); document.write( "\"%28%28y-5%29%2By%2B%28y%2B5%29%29%2F3=85\"
\n" ); document.write( "\"%28y-5%2By%2By%2B5%29%2F3=85\"
\n" ); document.write( "\"%283y%29%2F3=85\"
\n" ); document.write( "\"highlight%28y=85%29\"----ONE of the scores, the second score.
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\n" ); document.write( "\"highlight%28x=80%29\" and \"highlight%28z=90%29\".
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