document.write( "Question 463419: Larry's average (arithmetic mean) score on the first four of five tests is 88. If Larry wants to raise his average by 2 points, what score must he earn on his fifth test?\r
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Algebra.Com's Answer #317525 by alicealc(293)\"\" \"About 
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(4*88 + x)/5 = 88 + 2
\n" ); document.write( "(352 + x)/5 = 90
\n" ); document.write( "352 + x = 90 * 5
\n" ); document.write( "352 + x = 450
\n" ); document.write( "x = 450 - 352 = 98\r
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\n" ); document.write( "\n" ); document.write( "so, for the fifth test, he must earn 98
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