document.write( "Question 350270: the measures of two supplementary (=180) angles are in a ratio 3:15. what are the measures of the angles? \n" ); document.write( "

Algebra.Com's Answer #250373 by ewatrrr(24785) $\"\"$ $\"About$

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Hi,
\n" ); document.write( "Let x be one of the angles, (180 - x) the other
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\n" ); document.write( "Set up the proportion
\n" ); document.write( " $\"3%2F15+=+%28x%2F%28180-x%29%29\"$
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\n" ); document.write( "cross multiply to solve
\n" ); document.write( "15*x = 3*(180-x)
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\n" ); document.write( "simplify and solve
\n" ); document.write( " 15x = 540 - 3x
\n" ); document.write( "18x = 540
\n" ); document.write( " x = 30degrees
\n" ); document.write( "Supplement is 150degrees
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\n" ); document.write( "check your answer
\n" ); document.write( "3/15 = 30/150 \n" ); document.write( "

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