document.write( "Question 106211This question is from textbook Geometry
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document.write( ": Can some one please help me solve this problem?
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document.write( "The ratio of the complements of two angles is 3:2 and the ratio of their
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document.write( "supplements is 9:8. Find the two original angles.\r
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document.write( "Thank you! \n" );
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Algebra.Com's Answer #77256 by stanbon(75887) ![]() You can put this solution on YOUR website! The ratio of the complements of two angles is 3:2 and the ratio of their \n" ); document.write( "supplements is 9:8. Find the two original angles. \n" ); document.write( "---------------- \n" ); document.write( "Let the two angles be x and y. \n" ); document.write( "The complements are 90-x and 90-y \n" ); document.write( "The supplements are 180-x and 180-y \n" ); document.write( "------------------------ \n" ); document.write( "EQUATIONS: \n" ); document.write( "1st: (90-x)/(90-y) = 3/2 \n" ); document.write( "2nd: (180-x)/(180-y) = 9/8 \n" ); document.write( "--------------------------- \n" ); document.write( "Simplifying 1st you get: \n" ); document.write( "2(90-x) = 3(90-y) \n" ); document.write( "180-2x = 270-3y \n" ); document.write( "2x-3y = -90 \n" ); document.write( "--------------- \n" ); document.write( "Simplifying 2nd you get: \n" ); document.write( "8(180-x)= 9(180-y) \n" ); document.write( "8*180-8x = 9*180-9y \n" ); document.write( "8x-9y = -180 \n" ); document.write( "---------------- \n" ); document.write( "Rewrite 1st and 2nd: \n" ); document.write( "1st: 2x-3y = -90 \n" ); document.write( "2nd: 8x-9y = -180 \n" ); document.write( "-------------------- \n" ); document.write( "Multiply 1st by 4 and solve for y: \n" ); document.write( "1st: 8x - 12y = -360 \n" ); document.write( "Subtract from 2nd to get: \n" ); document.write( "3y = 180 \n" ); document.write( "y = 60 \n" ); document.write( "---------- \n" ); document.write( "Substitute into 2x-3y = -90 to solve for x: \n" ); document.write( "2x-3*60= -90 \n" ); document.write( "2x = 90 \n" ); document.write( "x = 45 \n" ); document.write( "============= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |