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15-12-2017
Mathematics

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Last year the WII System was $249.99.This year the same system cost $199.99.What was the percent of markdown?

Respuesta :

15-12-2017

Well, we'll call the markdown m.

Thus,

249.99(1 - m) = 199.99
1 - m = 199.99/249.99
1 - (199.99/249.99) = m
m = 20%

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