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24-08-2018
Mathematics

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find the rate of a discount sweater with a regular price of $39 that is on sale for $27

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24-08-2018

Just do 27/39 to find how much 27 is of 39, and then subtract that from 100 to get the percentage of discount.

27/39 is about 0.69

So the rate of discount is about 0.31

Hope this helps!

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