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nphuongsun93
 one year ago
Best ResponseYou've already chosen the best response.1first one, the two triangles are similar with ratio 5:3 a/b = 3/5 b/(8+a) = 3/5 second one, they are similar too x/ (x+5) = (x2)/(2x1) solves those

meadowlark
 one year ago
Best ResponseYou've already chosen the best response.0Oh, I solved the second one! :D I don't understand the equation you gave for the first... I just do the second equation b/(8+a) = 3/5?

nphuongsun93
 one year ago
Best ResponseYou've already chosen the best response.1which one did u do? a/b = 3/5 5a = 3b b/(8+a) = 3/5 5b = 24 + 3a 5a = 3b * 5 25 a = 15 b 24 + 3a = 5b * 3 72 + 9a = 15b 72 + 16a = 0 a = 4.5 substitute back in to find b

meadowlark
 one year ago
Best ResponseYou've already chosen the best response.0I did, a couple of times but I'm no getting any of the multiple choice. The closest I'm getting to is the third one, c.... Is it C?

nphuongsun93
 one year ago
Best ResponseYou've already chosen the best response.1a = 4.5 = 9/2 5a = 3b 5 (9/2) = 3b 15/2 = b

meadowlark
 one year ago
Best ResponseYou've already chosen the best response.0Thank you for your help
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