Problem

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) $F = \frac{N}{R - 1}$

Answer

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Answer

$F = \frac{R N}{1 - R}$

Steps

Step 1 ： $R = \frac{F}{F + N}$

Step 2 ：Solve for F:

Step 3 ： $F = \frac{R N}{1 - R}$

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