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24 July, 10:14

The price of a notebook has dropped to $3.20 today. yesterday's price was $3.45. find the percentage decrease.

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  1. 24 July, 11:57
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    So the difference is. 25, so the equation will be:

    -.25 / 3.45 = x / 100

    (cross multiply)

    3.45x = - 25

    (divide both sides by 3.45)

    x = - 7.24

    So there was a 7.24% decrease in the price
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