document.write( "Question 50337: Two angles are complementary. The measure of one angle is 21more than twice the measure of the other angle. Find the measures of the angles.\r
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document.write( "I am a parent trying to help a sophmore with this question. I just wanted to see if I was on the right track. Thanks for any help you could give. \n" );
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Algebra.Com's Answer #33426 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! There are (at leastl!) TWO ways to set up this equation. I think the easier way is to:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let x= one of the angles \n" ); document.write( "2x+21 = the other angle\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The equation is \n" ); document.write( "x + 2x +21 = 90 \n" ); document.write( "3x +21=90 \n" ); document.write( "3x = 69 \n" ); document.write( "x=23 degrees \n" ); document.write( "2x+21 = 46+21 = 67 degrees\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Check: 23 +67 = 90\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The other way is to \n" ); document.write( "Let x = the first angle \n" ); document.write( "90-x = the second angle\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The equation is from this sentence, where of course \"IS\" means \"=\": \n" ); document.write( "The second angle IS 21 more than twice the first angle. \n" ); document.write( "90-x= 2x+21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It comes out the same.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 at SCC\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |