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Mathematics 15 Online
OpenStudy (sonyalee77):

Write a proportion and find the value of x in the diagram. Round to the nearest tenth if necessary.

OpenStudy (sonyalee77):

that's the diagram

OpenStudy (anonymous):

|dw:1366223073760:dw|okay you have wo triangles

OpenStudy (anonymous):

so its \[\frac{ 7 }{12 }=\frac{ 12 }{ x+12 }\]

OpenStudy (anonymous):

then cross multiply

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