document.write( "Question 430194: 2.If angle R = (30 - y) and angle S = (9y - 10) and R and S are supplementary, find y. \n" ); document.write( "

Algebra.Com's Answer #298758 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "and R and S are supplementary
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document.write( " (30-y) + (9y-10) = 180°
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document.write( "      8y = 160°
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document.write( "       y = 20°\r
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document.write( "CHECKING our Answer***
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document.write( " 10° + 170° = 180°
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