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elizabethann509
Group Title
How do I solve this for x?
BD = 4x + 5 and BF = 9x
 one year ago
 one year ago
elizabethann509 Group Title
How do I solve this for x? BD = 4x + 5 and BF = 9x
 one year ago
 one year ago

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elizabethann509 Group TitleBest ResponseYou've already chosen the best response.0
dw:1358121510552:dw Not perfect but this is the drawing that goes with it
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
are points G, E and F midpoints of the segments AB, BC and AC ?
 one year ago

elizabethann509 Group TitleBest ResponseYou've already chosen the best response.0
I think so? Something about a centroid? This is a question that I posted for my brother because he doesn't know how to do this. Everything should be even in the drawing but i'm not an expert artist or anything lol.
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
if that's the case, then AE, GC, and BF are medians they all intersect at the centroid The distance from any vertex to the centroid is always twice as large as the distance from the centroid to the midpoint on the opposite segment (along the same median)
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
what does this mean? it means that we can say BD = 2k DF = k for some number k dw:1358122081547:dw
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
So BD = 2*DF 4x+5 = 2*9x solve for x, then use this to find BD and DF Your last step is to use them to find BF = BD + DF
 one year ago
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