document.write( "Question 862428: f(x) is the percent incorrect on a test when there are 25 questions correct and x questions incorrect.
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document.write( "What is the function?
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document.write( "How many questions were incorrect if the percentage of incorrect questions is 25%?\r
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Algebra.Com's Answer #519651 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! f(x) is the percent incorrect on a test when there are 25 questions correct and x questions incorrect. \n" ); document.write( "What is the function? \n" ); document.write( "f(x) = (x)/(x+25) \n" ); document.write( "--------------------------- \n" ); document.write( "How many questions were incorrect if the percentage of incorrect questions is 25%? \n" ); document.write( "------ \n" ); document.write( "0.25 = x/(x+25) \n" ); document.write( "x = 0.25x + 6.25 \n" ); document.write( "0.75x = 6.25 \n" ); document.write( "x = 8 1/3 \n" ); document.write( "---------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------------- \n" ); document.write( " |