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dawnparker71
15.07.2019 •
Mathematics
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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Ответ:
-.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
Ответ: