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Mathematics 19 Online
OpenStudy (anonymous):

Suppose you have a coupon for 10% off and you use it to buy a CD which was already discounted 15%. Do you end up with a discount of 25%? Explain your answer.

OpenStudy (dumbcow):

No, the CD is now only 85% of original price, the coupon is for 10% off this discounted price .85 * .1 = .085 which is 8.5% of original price Total discount = 15% + 8.5% = 23.5%

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