document.write( "Question 862428: 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( "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)\"\" \"About 
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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)
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\n" ); document.write( "How many questions were incorrect if the percentage of incorrect questions is 25%?
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\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
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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