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December 22, 2014

December 22, 2014

Posted by **Sara** on Tuesday, December 2, 2008 at 8:24pm.

- Math -
**Reiny**, Tuesday, December 2, 2008 at 8:31pmI will assume that each of the 11 students bought either one cookie or one brownie.

let the number of cookies be c

then the number of brownies is 11-c

solve this equation:

40c + 50(11-c) = 510

(let me know if you don't get cookies =4

brownies = 7 ?)

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