document.write( "Question 641244: How many questions can I get wrong in order to achieve 90% with a 70 question test? \n" ); document.write( "
Algebra.Com's Answer #403584 by JellyBeans(8)\"\" \"About 
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70 = 100%
\n" ); document.write( "7 = 10 %
\n" ); document.write( "100% - 10% = 90%
\n" ); document.write( "70 - 7 = 63\r
\n" ); document.write( "\n" ); document.write( "You can get 7 wrong questions to achieve 90% with a 70 question test.
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