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Smokahontas
 3 years ago
Trapezoid problem? (Geometry)
Smokahontas
 3 years ago
Trapezoid problem? (Geometry)

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Smokahontas
 3 years ago
Best ResponseYou've already chosen the best response.0I set up the equation as 3x+5=1/2[(7x+4)+4] but I got the wrong answer. I dont understand how to do it, please help?

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1what value of x did you get?

Smokahontas
 3 years ago
Best ResponseYou've already chosen the best response.0I got 10, but the answer is 11. I dont know how to get 11 though..

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1ah, \(\overline{EF}\) is asked. what did you get for x?

Smokahontas
 3 years ago
Best ResponseYou've already chosen the best response.0I told you haha, I got 10...

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1something went wrong in your algebra. let's compare results. \[3x+5=(1/2)[(7x+4)+4]\\2(3x+5)=(7x+4)+4\\6x+10=7x+8\]

Smokahontas
 3 years ago
Best ResponseYou've already chosen the best response.0Where did you get the 2 from? And where did the 1/2 go?

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1i multiplied the first equation by 2 to clear denominator

Smokahontas
 3 years ago
Best ResponseYou've already chosen the best response.0That would've been better...but if you solve it like that wouldnt x=6?

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.16x+106x=7x+86x 10 = x + 8 108=x8 2=x

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1\[\overline{EF}=3x+5=3(2)+5=11\]

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.1uhm, the third line should read 108=x+88

Smokahontas
 3 years ago
Best ResponseYou've already chosen the best response.0Oh I see...but I thought Line EF was half of line BC...?
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