I'm sort of having trouble doing this problem since I don't understand how to do it... Can anyone tell me how to solve this problem?

http://img5.imageshack.us/img5/8251/11934715.jpg

Thanks

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- Sep 9th 2009, 02:23 PMJubblyMidpoint?
I'm sort of having trouble doing this problem since I don't understand how to do it... Can anyone tell me how to solve this problem?

http://img5.imageshack.us/img5/8251/11934715.jpg

Thanks - Sep 9th 2009, 02:33 PMJameson
If T is the midpoint of SU that means that (1/2)SU = ST. You know how to find SU and ST in terms of x, so take it from there.

- Sep 9th 2009, 06:01 PMrtblue
since we have T as the midpoint, by definition ST=TU

so.... $\displaystyle 9x=4x+25$

$\displaystyle 5x=25$

$\displaystyle x=5$

therefore, ST= 45, because ST=9x=9(5)=45