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13 July, 09:51

A stereo is marked down $75. If this is a 15% decrease find the sale price. How do you work this problem out?

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  1. 13 July, 10:03
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    You can do a proportion: 75/15 = x/100

    you then do 100x75 and the divide by 15 and get 500.

    15% of $500 is $75 so the sale price would be $425 I believe.
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