find the value of x and y
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Step-by-step explanation:
10x +5y+80=180(Cointerior LI80)
15x +4y+72=180( " )
10x+5y=100. ( I)
15x +4y=108. (2)
(1) X3>30x+15y=300. (3)
(2) x2>30x+8y= 216. (4)
Deduct>
7y=84,y=12
Iox +5y=loo
lox+60=1oo, Iox=40,x=4
x=4and y = 12. Ans
Iox+5y=40+60=100 degree
15x +4y=60+48=108 degree
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