document.write( "Question 1022375: Ginny's median score on three tests was 88. Her mean score was 87 and her range was 5. What were her three test scores? \n" ); document.write( "

Algebra.Com's Answer #638046 by macston(5194) $\"\"$ $\"About$

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Ginny's median score of 88 would be her middle score.
\n" ); document.write( "Her average (mean) score is 87,
\n" ); document.write( "so the sum of her scores is 3(87)=261.
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\n" ); document.write( "Let her low score=x, her high score is x+5 (range is 5):
\n" ); document.write( "(x)+88+(x+5)=261
\n" ); document.write( "2x+93=261
\n" ); document.write( "2x=168
\n" ); document.write( "x=84
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\n" ); document.write( "Ginny's low score was 84 points
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\n" ); document.write( "Ginny's high score was (84 points)+(5 points)=99 points
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\n" ); document.write( "Ginny's three scores were 84, 88, and 89.
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\n" ); document.write( "CHECK:
\n" ); document.write( "Ginny's average (mean)=87
\n" ); document.write( ".
\n" ); document.write( "(sum of scores)/(number of scores)=(average of scores)
\n" ); document.write( "((84)+(88)+(89))/3=87
\n" ); document.write( "87=87
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