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Mathematics 7 Online
OpenStudy (anonymous):

http://gyazo.com/4dbd64fdd3e5d23e0601e876df3551ed

OpenStudy (astrophysics):

Cross multiply\[\frac{ x }{ 12 } = \frac{ 55 }{ 60 }\]

OpenStudy (astrophysics):

\[60x = 55(12)\]

OpenStudy (astrophysics):

Finish it off.

OpenStudy (astrophysics):

What?

OpenStudy (anonymous):

C

OpenStudy (astrophysics):

\[60x=660 \implies x = \frac{ 660 }{ 60 } = 11\]

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