lightmyway
lightmyway
19-11-2016
Mathematics
contestada
I need help on NUMBER 8.
Respuesta :
BobR9
BobR9
19-11-2016
Explanation: I know that these two angles are supplementary, so I know by adding them, they equal 180 degrees.
Math: x+30+(3x+10)=180
4x+40=180
4x=140
X=35
Substitute your X values back in.
X+30
35+30
=65
3x+10
3(35)+10
=115
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