document.write( "Question 784597: John recently scored a 96 on a 100-point test. This score brought his overall test average up percentage points to 81%. How many tests has John's class taken in total if every test was 100 points? \n" ); document.write( "
Algebra.Com's Answer #477159 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "You didn't provide all of the required information. You wrote \"...test average up percentage points...\" and left out a number between \"up\" and \"percentage\". So let's call that number . Let's call the number of tests taken .\r
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\n" ); document.write( "\n" ); document.write( "If the final average is 81, then the total points scored on tests is . The total points before the last test must then have been either or , meaning that this is two ways of arriving at the same number. Hence:\r
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\n" ); document.write( "\n" ); document.write( "Once you figure out what was supposed to have been, substitute it and do the arithmetic. Then solve for \r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "Egw to Beta kai to Sigma
\n" ); document.write( "My calculator said it, I believe it, that settles it
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