pebblesbird
pebblesbird
16-11-2014
Mathematics
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Solve for z. z/12 = 6 3/4
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Аноним
Аноним
16-11-2014
[tex]\frac{z}{12}=6\frac{3}{4}\\\\\frac{z}{12}=\frac{6\times4+3}{4}\\\\\frac{z}{12}=\frac{27}{4}\ \ \ \ \ |multiply\ both\ sides\ by\ 12\\\\12\times\frac{z}{12}=12\times\frac{27}{4}\\\\z=3\times27\\\\\boxed{z=81}[/tex]
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