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Mathematics 9 Online
OpenStudy (anonymous):

Karen and two of her friends are splitting the bill for their lunch. They each got back $2 in change after the $30 lunch bill was paid. Which of the following can be used to find the amount of money each girl contributed?

OpenStudy (anonymous):

OpenStudy (tkhunny):

If n is the number of girls eating lunch... \(Contribution\;=\;\dfrac{30 - 2n}{n} = \dfrac{30}{n} - 2\) Which description means one of those?

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