22-10-2015
Mathematics

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Maya spent 40% of her savings on a bike it cost her $85 how much money does she have left

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crisforp crisforp

22-10-2015

Let be Z the money ;
We have ( 40 / 100 ) x Z = $85 ;
( 4 / 10 ) x Z = $85 ;
( 2 / 5 ) x Z = $85 ;
Z = $( 85 x 5 ) ÷ 3 ;
Z = $425 ÷ 3 ;
Z = $141,66 ≈ $142 ;

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