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18-12-2016
Mathematics

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A sweater originally costing $80 is now on sale for $60. determine the percent decrease.30% %

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pingwin09 pingwin09

18-12-2016

Let x = discount rate
Equate:
$80(1-x) = $60
Solve for x:
1-x = 60/80
1-x = 3/4
x = 1 - 3/4
x = 1/4 or 0.25
x = 25%

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