Question

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? Remember, do not include the $ symbol.

Answer 1

To answer the question above, directly substitute the given price which is $100 to all the x's of the given equation,
                             C = 0.765x + 0.06 (0.765x)
                        C = (0.765) ($100) + 0.06 (0.765) ($100) = 81.09
Thus, Chris would have to pay only $81.09.

Answer 2

Answer 81.09

C = 0.765x + 0.06 (0.765x)

                       C = (0.765) ($100) + 0.06 (0.765) ($100) = 81.09