document.write( "Question 532047: 1) Two numbers are in the ratio of 3:5. If 8 is subtracted from their sum, the result is 40. What is the larger number?\r
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document.write( "2)The ratio of two complementary angles is 2:7. What are the measures of the two angles?\r
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document.write( "3) Two angles are supplementary. The larger angles is 3 less than twice the smaller angle. Find the measure of the larger angle. \n" );
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Algebra.Com's Answer #350817 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! 1) Two numbers are in the ratio of 3:5. If 8 is subtracted from their sum, the result is 40. \n" ); document.write( " What is the larger number? \n" ); document.write( "Let x = the multiplier \n" ); document.write( "then \n" ); document.write( "3x = the smaller number \n" ); document.write( "5x = the larger \n" ); document.write( "\"If 8 is subtracted from their sum, the result is 40.\" \n" ); document.write( "5x + 3x - 8 = 40 \n" ); document.write( "8x = 40 + 8 \n" ); document.write( "8x = 48 \n" ); document.write( "x = 48/8 \n" ); document.write( "x = 6 is the multiplier \n" ); document.write( "therefore \n" ); document.write( "6(5) = 30 is the larger number \n" ); document.write( "and \n" ); document.write( "6(3) = 18 is the smaller, check this in the given statement \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "2)The ratio of two complementary angles is 2:7. What are the measures of the two angles? \n" ); document.write( "let x = the multiplier \n" ); document.write( "2x + 7x = 90 \n" ); document.write( "9x = 90 \n" ); document.write( "x = 10 is the multiplier \n" ); document.write( "then \n" ); document.write( "20 and 70 are the two angles \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "3) Two angles are supplementary. The larger angles is 3 less than twice the smaller angle. Find the measure of the larger angle. \n" ); document.write( "let a = the larger angle \n" ); document.write( "let b = the smaller \n" ); document.write( "a = 2b-3 \n" ); document.write( ": \n" ); document.write( "a + b = 180 \n" ); document.write( "2b-3 + b = 180 \n" ); document.write( "3b - 3 = 180 \n" ); document.write( "3b = 180 + 3 \n" ); document.write( "3b = 138 \n" ); document.write( "b = 183/3 \n" ); document.write( "b = 61 \n" ); document.write( "Find a \n" ); document.write( "a = 2(61) - 3 \n" ); document.write( "a = 122 - 3 \n" ); document.write( "a = 119 degrees is the larger angle \n" ); document.write( ": \n" ); document.write( "Check this 119 + 61 = 180 \n" ); document.write( " \n" ); document.write( " |