document.write( "Question 645246: Angle C and Angle D are supplementary. The measure of Angle D
\n" ); document.write( "is eight times the measure of Angle C. Find angle C and angle D.
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Algebra.Com's Answer #405412 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "Supplementary angles are pairs of angles that add up to \"180\" degrees. \r
\n" ); document.write( "\n" ); document.write( "given:\r
\n" ); document.write( "\n" ); document.write( "Angle \"C\" and Angle \"D+\" are supplementary...=>...\"C%2BD=180\"\r
\n" ); document.write( "\n" ); document.write( "The measure of Angle \"D+\" is eight times the measure of Angle \"C\". \r
\n" ); document.write( "\n" ); document.write( "\"D=8C+\".....substitute in \"C%2BD=180\"\r
\n" ); document.write( "\n" ); document.write( "\"C%2B8C=180\".....solve for \"C\"\r
\n" ); document.write( "\n" ); document.write( "\"9C=180\"\r
\n" ); document.write( "\n" ); document.write( "\"C=180%2F9\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28C=20%29\".........now find \"D+\"\r
\n" ); document.write( "\n" ); document.write( "\"D=8C+\"\r
\n" ); document.write( "\n" ); document.write( "\"D=8%2A20+\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28D=160+%29\"\r
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