HELP ASAP!! I DON'T UNDERSTAND HOW TO DO THESE!! WILL MEDAL THE FIRST PERSON TO HELP!! 19. http://assets.openstudy.com/updates/attachments/580ead97e4b012711f1ae766-ilovemath14-1477357022112-image.jpeg
co-interior angles are supplementary
angles on a straight line are supplementary
supplementary angles add together to give to 180°
for 15) you have \[(x+108)+(x+88) = 180\] solve for \(x\).
x= -8 @UnkleRhaukus
yes! that is correct for 15)
7) is very similar, can you set up the equation?
For #15 the answer seems weird too me I don't have any negatives on my paper
So you got \(x=-8\), for 15) and you want to check it. The angles in the diagram are \[x+108\]and\[x+88\] But we found a value for \(x\) Which means the angles are really \[x+108=(-8)+108=100\]and\[x+88=(-8)+88=80\] Not only do these angles add to 180 (as they should) but they even look to be about the right measure on the diagram.
Oh ok
how did you go with the other two questions?
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