document.write( "Question 574606: Tom received 89, 94, 86, and 96 on the first algebra tests. What grade must he receive on his last test to have an average of 92? \n" ); document.write( "
Algebra.Com's Answer #369170 by jim_thompson5910(35256)\"\" \"About 
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Let x = last test grade\r
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\n" ); document.write( "\n" ); document.write( "(89+94+86+96+x)/5 = 92\r
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\n" ); document.write( "\n" ); document.write( "(365+x)/5 = 92\r
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\n" ); document.write( "\n" ); document.write( "365+x = 92*5\r
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\n" ); document.write( "\n" ); document.write( "365+x = 460\r
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\n" ); document.write( "\n" ); document.write( "x = 460-365\r
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\n" ); document.write( "\n" ); document.write( "x = 95\r
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\n" ); document.write( "\n" ); document.write( "So Tom must receive a 95 on the last test.
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