document.write( "Question 995570: the average for 12 students grades id 84. when the two lowest grades dropped, the average went up to 90. what is the average of the two lowest grades? \n" ); document.write( "
Algebra.Com's Answer #614339 by ankor@dixie-net.com(22740)\"\" \"About 
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he average for 12 students grades id 84.
\n" ); document.write( " when the two lowest grades dropped, the average went up to 90.
\n" ); document.write( " what is the average of the two lowest grades?
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\n" ); document.write( "let x = the Average of the two lowest grades
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\n" ); document.write( "\"%282x%2B10%2890%29%29%2F12\" = 84
\n" ); document.write( "Multiply both sides by 12
\n" ); document.write( "2x + 900 = 1008
\n" ); document.write( "2x = 1008 - 900
\n" ); document.write( "2x = 108
\n" ); document.write( "x = 108/2
\n" ); document.write( "x = 54% is the av of the two lowest grades
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