simba196 simba196

01-08-2016
Mathematics

contestada

a + c =150
9a + 6c = 1155

Respuesta :

konrad509 konrad509

01-08-2016

[tex]a+ c =150\\ 9a + 6c = 1155\\\\ a+c=150\\ 3a+2c=385\\\\ -2a-2c=-300\\ \underline{3a+2c=385}\\ a=85\\\\ 85+c=150\\ c=65 [/tex]

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