SOLUTION: a video store charges non-members $4 to rent a video. A store membership costs $21 but members pay only $2.50 to rent each video. How many videos do you need to rent for the cost o

Question 699329: a video store charges non-members $4 to rent a video. A store membership costs $21 but members pay only $2.50 to rent each video. How many videos do you need to rent for the cost of videos to be the same for members and non-members?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of videos to be rented
Let = cost of renting videos
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For non-members:

For members:

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Set the cost equal to each other

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When 14 videos are rented, the costs are the same

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