Question 270963
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You can't solve this problem with the information given.  You have to have the per item price of each of the items.


Let *[tex \Large x] represent the number of juice boxes and *[tex \Large y] represent the number of sandwiches.


You could then say that:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ +\ y\ =\ 540]


because they sold 540 items.


But only knowing the total amount collected doesn't tell you enough about the value of the juice boxes or the sandwiches.  If you had the price of the juice boxes, say *[tex \Large A], and the price of the sandwiches, say *[tex \Large B], then the value of the juice boxes sold would be *[tex \Large Ax] and the value of the sandwiches sold would be *[tex \Large By].  Then you could create a second equation:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ Ax\ +\ By\ =\ 730.50]


But without knowing the values of *[tex \Large A] and *[tex \Large B] you are stuck.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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