Question 513254
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Let's see if your answer holds water.  20% of 11520 is 2304.  11520 - 2304 is 9216.  9216 is not equal to 9600.


A discount is applied to the original price.  So let *[tex \Large p] represent the original price and then the discount amount has to be *[tex \Large 0.2p].  Then the discount amount is subtracted from the original price to get the sale price:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ p\ -\ 0.2p\ =\ 9600]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 0.8p\ =\ 9600]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ p\ =\ \frac{9600}{0.8}\ =\ 12000]


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