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In the triangle, what is the value of x ?
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21 Sep 2018, 12:08
21 Sep 2018, 12:08
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In the triangle, what is the value of x ?
(A) 25
(B) 55
(C) 60
(D) 77
(E) 85
Re: In the triangle, what is the value of x ?
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22 Sep 2018, 23:52
22 Sep 2018, 23:52
Since the three angles 70-y, y+x, 60+x add up to 180
we can transfer the information into a equation.
\(70-y\)\(+y+x+60+x = 180\)
y cancels out hence,
\(70+2x+60 = 180\)
\(2x = 180-130\)
\(x = 50/2 = 25\)
we can transfer the information into a equation.
\(70-y\)\(+y+x+60+x = 180\)
y cancels out hence,
\(70+2x+60 = 180\)
\(2x = 180-130\)
\(x = 50/2 = 25\)
gmatclubot
Re: In the triangle, what is the value of x ? [#permalink]
22 Sep 2018, 23:52
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