document.write( "Question 157885: Two angles are supplementary of each other. Twice one angle is equal to the other angle minus the product of six and eight. \r
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document.write( "Set up a system of linear equations to represent the two angles and graph each of the equations on one rectangular coordinate system. \r
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document.write( "Alexander, D. C., & Koeberlein, M. G. (2003). Elementary geometry for college students (3rd ed.). Boston: Houghton Mifflin. \n" );
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Algebra.Com's Answer #116334 by gonzo(654)![]() ![]() ![]() You can put this solution on YOUR website! A + B = 180 degrees \n" ); document.write( "2*A = B-48 \n" ); document.write( "A is angle A \n" ); document.write( "B is angle B is the supplementary angle to A. \n" ); document.write( "48 is the product of 6 * 8. \n" ); document.write( "if 2*A = B-48, then A = (B-48)/2 \n" ); document.write( "substituting in the first equation (A+B=180), we get \n" ); document.write( "(B-48)/2 + B = 180 \n" ); document.write( "multiplying both sides to remove the fraction, we get \n" ); document.write( "(B-48) + 2B = 360 \n" ); document.write( "which becomes \n" ); document.write( "3B - 48 = 360 \n" ); document.write( "which becomes \n" ); document.write( "3B = 360 + 48 = 408 \n" ); document.write( "which becomes \n" ); document.write( "B = 408 / 3 = 136 degrees \n" ); document.write( "if B is 136 degrees than A must be 180 - 136 degrees = 44 degrees. \n" ); document.write( "answer looks like B = 136 degrees and A = 44 degrees. \n" ); document.write( "substituting values in the equation 2*A = B-48, we get \n" ); document.write( "2*44 = 136 - 48 which becomes \n" ); document.write( "88 = 88 which proves the calculated values for A and B are correct. \n" ); document.write( " \n" ); document.write( " |