document.write( "Question 1056559: John recently scored a 96 on a 100 point test. This score brought up his overall test average 3 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 #671668 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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John recently scored a 96 on a 100 point test.
\n" ); document.write( " This score brought up his overall test average 3 percentage points to 81%.
\n" ); document.write( " How many tests has John’s class taken in total if every test was 100 points?
\n" ); document.write( ":
\n" ); document.write( "Before the test his average was 3 points less or 78
\n" ); document.write( "let n = number test he took before the 96
\n" ); document.write( " $\"%28%2878n+%2B+96%29%29%2F%28%28n%2B1%29%29\"$ = 81
\n" ); document.write( "78n + 96 = 81(n+1)
\n" ); document.write( "78n + 96 = 81n + 81
\n" ); document.write( "96 - 81 = 81n - 78n
\n" ); document.write( "15 = 3n
\n" ); document.write( "n = 15/3
\n" ); document.write( "n = 5 test before he got the 96
\n" ); document.write( "\"How many tests has John’s class taken in total?\"
\n" ); document.write( "6 tests \n" ); document.write( "

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