music700 music700

12-10-2017
Mathematics

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I need help with this question I dont know what to do

I need help with this question I dont know what to do class=

Respuesta :

choixongdong choixongdong

12-10-2017

m<A + m<B = 180
5y + 9y + 68 = 180
14y + 68 = 180
14y = 180 -68
14y = 112
y = 112/14
y = 8

so
m<B = 9y + 68
m<B = 9(8) + 68
m<B = 72 + 68
m<B = 140

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