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solving proportion 10\8=n\10

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[tex]\frac{10}{8}=\frac{n}{10} \\ \hbox{cross multiply:} \\ 8n=10 \times 10 \\ 8n=100 \\ n=\frac{100}{8} \\ n=\frac{25}{2} \\ n=12 \frac{1}{2}[/tex]
[tex]\frac { 10 }{ 8 } =\frac { n }{ 10 } \\ \\ 10\cdot \frac { 10 }{ 8 } =\frac { n }{ 10 } \cdot 10\\ \\ \frac { 100 }{ 8 } =n[/tex]

[tex]\\ \\ n=\frac { 4\cdot 25 }{ 4\cdot 2 } \\ \\ \therefore \quad n=\frac { 25 }{ 2 } [/tex]

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