document.write( "Question 919221: The ratio of an angle to its supplement is 5:4. What does the angle equal? \n" ); document.write( "
Algebra.Com's Answer #557579 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "let \"x\" = the angle and its supplement is \"%28180-x%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x+%2F+%28180-x%29+=+5%2F4\".......cross multiply\r
\n" ); document.write( "\n" ); document.write( "\"4x+=+5%28180-x%29\"\r
\n" ); document.write( "\n" ); document.write( "\"4x+=+900-5x\"\r
\n" ); document.write( "\n" ); document.write( "\"4x%2B5x+=+900\"\r
\n" ); document.write( "\n" ); document.write( "\"9x+=900\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=900%2F9\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=100\"\r
\n" ); document.write( "\n" ); document.write( "and its supplement is \"%28180-x%29=180-100=80\"\r
\n" ); document.write( "\n" ); document.write( "check ratio \r
\n" ); document.write( "\n" ); document.write( "\"100%2F80=5%2F4\"\r
\n" ); document.write( "\n" ); document.write( "\"10%2F8=5%2F4\"\r
\n" ); document.write( "\n" ); document.write( "\"cross%2810%295%2Fcross%288%294=5%2F4\"\r
\n" ); document.write( "\n" ); document.write( "\"5%2F4=5%2F4\"
\n" ); document.write( "
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