It would take Charlene and Gina 18 minutes to organize Charlene's comic book collection if they work together. If Gina works alone, it would take her 15 minutes longer than it would take Charlene working alone. When $$ x $$ represents the number of minutes it takes Charlene to organize the comic book collection working alone, the situation is represented by this equation: $$ \frac{1}{x}+\frac{1}{x+15}=\frac{1}{18} $$, Which value is a solution of the rational equation that must be discarded because of the context? A. $$ x=0 $$ B. $$ x=-9 $$ C. $$ x=-15 $$ D. $$ x=-30 $$

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Coleman Peterson · Accepted Answer

$$ x = -9 $$ must be discarded because it doesn't make sense in the context of the problem.

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