Posted by cj on Wednesday, October 12, 2011 at 1:42pm.
A store offers a 15% discount on all items in the store during a sale. All store employees get an additional 10% employee discount. In the equation below, C represents the cost of an item for an employee including tax, and x represents the original price of the item.
C = 0.765x + 0.06(0.765x)
Chris is an employee at the store. He plans to buy a coat during the sale. The price of the coat before the discount is $100. How much will Chris pay for the coat during the sale?

math  Reiny, Wednesday, October 12, 2011 at 4:56pm
I don't see how your formula is related to the data given in the question
cost to Chris before any sales tax is added would be
100(.85)(.9) = 76.50
(the single discount equivalent to consecutive discounts of 15% and 10% i
>985)(.9) = .765
Is there a sales tax of 6% which shows up in your formula, but is not mentioned in the question ? )
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