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April 18, 2014

Search: matematica

Number of results: 3

matematica
( 3x+5y =15,30) (6x+2y)=16,20 x ? y ? thanks
Wednesday, January 2, 2013 at 6:44am by gaetano

matematica
como formar tres numeros diferentes com mais de 22 dezenas e menos de 24 dezenas
Friday, July 8, 2011 at 9:45am by A

matematica
double the first 6x + 10y = 30.6 6x + 2y = 16.2 , the second now subtract them 8y = 14.4 y = 1.8 back in first 3x + 5(1.8) = 15.3 3x = 6.3 x = 2.1 x=2.1 , y=1.8
Wednesday, January 2, 2013 at 6:44am by Reiny

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