SOLUTION: 2.If angle R = (30 - y) and angle S = (9y - 10) and R and S are supplementary, find y.

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Question 430194: 2.If angle R = (30 - y) and angle S = (9y - 10) and R and S are supplementary, find y.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

and R and S are supplementary

 (30-y) + (9y-10) = 180°

      8y = 160°

       y = 20°



CHECKING our Answer***

 10° + 170° = 180°