document.write( "Question 107230This question is from textbook
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document.write( ": What is the measure of two complimentary angles if their difference is 12? \n" );
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Algebra.Com's Answer #78047 by bucky(2189)![]() ![]() ![]() You can put this solution on YOUR website! If two angles are complementary, the sum of their measures is 90 degrees. \n" ); document.write( ". \n" ); document.write( "Call one of the angles x. \n" ); document.write( ". \n" ); document.write( "This means that its complement is 90 - x degrees. \n" ); document.write( ". \n" ); document.write( "But the difference in their measures is 12 degrees. Therefore, you can write the equation: \n" ); document.write( ". \n" ); document.write( "x - (90 - x) = 12 \n" ); document.write( ". \n" ); document.write( "Since the parentheses are preceded by a minus sign, you can remove the parentheses if you also \n" ); document.write( "change the signs of the terms inside the parentheses. Therefore, when you remove the parentheses \n" ); document.write( "the equation becomes: \n" ); document.write( ". \n" ); document.write( "x - 90 + x = 12 \n" ); document.write( ". \n" ); document.write( "Combine the two x terms on the left side to get: \n" ); document.write( ". \n" ); document.write( "2x - 90 = 12 \n" ); document.write( ". \n" ); document.write( "Get rid of the -90 on the left side by adding 90 to both sides to get: \n" ); document.write( ". \n" ); document.write( "2x = 102 \n" ); document.write( ". \n" ); document.write( "Solve for x by dividing both sides of the equation by 2 to get: \n" ); document.write( ". \n" ); document.write( "x = 102/2 = 51 \n" ); document.write( ". \n" ); document.write( "So the measure of one of the two angles is 51 degrees. Its complement is the amount that \n" ); document.write( "must be added to that angle such that this sum is 90 degrees. By subtracting 51 from 90 \n" ); document.write( "degrees, you find that the complement of the angle is an angle of 39 degrees. Note that \n" ); document.write( "the difference in the two angles is 51 - 39 = 12 degrees, just as the problem specified. \n" ); document.write( ". \n" ); document.write( "The answer to this problem is that the measures of the two complementary angles are 51 \n" ); document.write( "degrees and 39 degrees. \n" ); document.write( ". \n" ); document.write( "Hope this helps you to understand the problem a little better. \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " |