document.write( "Question 678406: Lenny's average score after 3 tests is 88. What score on the 4th test would bring Lenny's average up to exactly 90?
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Algebra.Com's Answer #421350 by ReadingBoosters(3246)\"\" \"About 
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\"%28x%2F3%29=88\"
\n" ); document.write( "x = 3(88) = 264 points on first three tests
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\n" ); document.write( "\"%28264%2By%29%2F4+=+90\"
\n" ); document.write( "264+y = 4(90)
\n" ); document.write( "y = 360 - 264
\n" ); document.write( "y = 96 points needed on the fourth test
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\n" ); document.write( "-Reading Boosters
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