girl22331
girl22331
18-01-2017
Mathematics
contestada
Photo above! Please help if you can
Respuesta :
evecb
evecb
18-01-2017
y is equal to 3x.
because alternating angles are equivalent
Answer Link
bcalle
bcalle
18-01-2017
Since AB is parallel to JK 3x and 7x are consecutive interior angles. This means their sum is 180.
3x + 7x = 180
10x = 180
X = 18
7x and y are a linear pair so 7(18)+y =180
128 + y = 180
Subtract 128 from both sides
y = 52
Answer Link
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