document.write( "Question 433564: In a certain triangle, the measure of one angle is double the measure of a second angle but is 10 degrees less than the measure of the third angle. [The sum of the measures of three interior angles of a triangle is always 180 degrees.] What is the measure of each angle? \r
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document.write( "mine is
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document.write( "180 = x^2-z+y
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document.write( "as you can see, I am lost.
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document.write( "Patty \n" );
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Algebra.Com's Answer #300674 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! In a certain triangle, the measure of one angle is double the measure of a second angle but is 10 degrees less than the measure of the third angle \n" ); document.write( ": \n" ); document.write( "Not sure what you are doing here, but this is one method \n" ); document.write( ": \n" ); document.write( "Let x = the \"the measure of the second angle\" \n" ); document.write( ": \n" ); document.write( "\"the measure of one angle is double the measure of the second angle\", therefore: \n" ); document.write( "2x = \"one angle\" \n" ); document.write( ": \n" ); document.write( "\"is 10 degrees less than the measure of the third angle\", therefore \n" ); document.write( "2x + 10 = the third angle \n" ); document.write( ": \n" ); document.write( "x + 2x + (2x+10) = 180 \n" ); document.write( "5x = 180 - 10 \n" ); document.write( "x = \n" ); document.write( "x = 34 degrees is the 2nd angle \n" ); document.write( "then \n" ); document.write( "2(34) = 68 degrees is \"one angle \n" ); document.write( "and \n" ); document.write( "68 + 10 = 78 degrees is the 3rd angle \n" ); document.write( "; \n" ); document.write( ": \n" ); document.write( "See if that adds up \n" ); document.write( "34 + 68 + 78 = 180 \n" ); document.write( " |