SOLUTION: f(x) is the percent incorrect on a test when there are 25 questions correct and x questions incorrect.
What is the function?
How many questions were incorrect if the percentage
Algebra.Com
Question 862428: f(x) is the percent incorrect on a test when there are 25 questions correct and x questions incorrect.
What is the function?
How many questions were incorrect if the percentage of incorrect questions is 25%?
Answer by stanbon(75887) (Show Source): 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.
What is the function?
f(x) = (x)/(x+25)
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How many questions were incorrect if the percentage of incorrect questions is 25%?
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0.25 = x/(x+25)
x = 0.25x + 6.25
0.75x = 6.25
x = 8 1/3
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Cheers,
Stan H.
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