Krystal33 Krystal33

10-02-2016
Mathematics

contestada

40% of what number is 30?

Respuesta :

10-02-2016

30 = 40% * x

30 = 40/100 * x

30 = 4/10 * x

30 = 2/5 * x

x = 30 * 5/2

x = 15 * 5

x = 75

40% of 75 is 30

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