document.write( "Question 958628: if there were 90 questions on a test, and amber recieved a 95%, how many questions did she answer incorrectly?
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Algebra.Com's Answer #585990 by Fombitz(32388) $\"\"$ $\"About$

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$\"%2890-X%29%2F90=95%2F100\"$
\n" ); document.write( " $\"90-X=8550%2F100\"$
\n" ); document.write( " $\"90-X=171%2F2\"$
\n" ); document.write( " $\"X=180%2F2-171%2F2\"$
\n" ); document.write( " $\"X=9%2F2\"$
\n" ); document.write( "So Amber either got 4 or 5 wrong.
\n" ); document.write( "If she got 4 wrong,
\n" ); document.write( " $\"86%2F90=95.56\"$
\n" ); document.write( "which would round up to 96.
\n" ); document.write( "If she got 5 wrong,
\n" ); document.write( " $\"85%2F90=94.44\"$
\n" ); document.write( "which would round down to 94.
\n" ); document.write( "So Amber couldn't have gotten a 95%.
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