steveanh12 steveanh12

21-08-2016
Mathematics

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a 9-kg of mangoes for 12$_____per kg

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WorldlyGlass49 WorldlyGlass49

21-08-2016

If 9kg costs 12$, then a single kg costs around 1.3$

This is done with a simple proportion

9 : 12 = 1 : X
x = 12/9
x = 1.33

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