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Mathematics 15 Online
OpenStudy (anonymous):

So, let's solve for x..... Because I'm not sure whether to make a proportion or not. Anyway, the diagram's in the comments.

OpenStudy (anonymous):

OpenStudy (anonymous):

If AB|| DC and AD||BC then \[\frac{4}{5}=\frac{x}{7.5} \]\[x=6 \]

OpenStudy (anonymous):

So I was supposed to do a proportion...okay. Thanks!

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