\( 4: 23 \)
:i!! 5
Solving
Question
to calculate a seller's rating, \( R \), based on the number of favorable reviews, \( F \), and unfavorable reviews, \( N \). Which of the following expresses the number of favorable reviews in terms of the other variables?
A) \( F=\frac{R N}{R-1} \)
B) \( F=\frac{R N}{1-R} \)
C) \( F=\frac{N}{1-R} \)
D) \( F=\frac{N}{R-1} \)
Solving Steps
\( \uparrow \)
(1) \( R=\frac{F}{F+N} \)
(2) Solve for \( \mathrm{F} \) :
(3) \( F=\frac{R N}{1-R} \)
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