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OpenStudy (anonymous):
D and E are the midpoints of the sides of triangle ABC. If DE=2x, BC=x+10, DE=?
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OpenStudy (anonymous):
PLEASE HELP :(((
OpenStudy (anonymous):
|dw:1394985003381:dw| \[DE=\frac{ 1 }{2 }BC,BC=2DE,x+10=2(2x)=4x\] calculate x and then DE=2x
OpenStudy (anonymous):
How will you solve for x? :(
OpenStudy (anonymous):
4x-x=10 3x=10 x=10/3 DE=2x=2*10/3=20/3
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