Question 627039
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At the place that gives him a 10% across the board discount, he is paying 90% of the total bill.  At the other place he is paying $50 plus 80% of the total bill minus $50


Let *[tex \LARGE x] represent the total cost of the required supplies.  Then the first store is going to charge him


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 0.9x]


and the second store is going to charge him


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 50\ +\ 0.8(x\ -\ 50)]


For the given situation, plug in $187 for *[tex \LARGE x] and then do the arithmetic.  The smaller result is the better deal.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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