document.write( "Question 125463: Three times the larger numbers is equal to four times the smaller. The sum of the numbers is 21. Find the numbers. \n" ); document.write( "
Algebra.Com's Answer #91907 by uma(370)![]() ![]() ![]() You can put this solution on YOUR website! Let the larger number = x and the smaller be y. \n" ); document.write( "Then we have x + y = 21 -------------(1) \n" ); document.write( "Also given 3 times the larger = 4 times the smaller \n" ); document.write( "==> 3x = 4y \n" ); document.write( "==> 3x - 4y = 0 \n" ); document.write( " 4x + 4y = 84 [ 4 times (1)] \n" ); document.write( "Adding the above 2 equations, 7x = 84 \n" ); document.write( "==> x = 84/7 \n" ); document.write( "==> x = 12 \n" ); document.write( "So 3x = 36 \n" ); document.write( "==> 4y = 36 \n" ); document.write( "==> y = 36/4 \n" ); document.write( "==> y = 9\r \n" ); document.write( "\n" ); document.write( "Thus the bigger number is 12 and the smaller number is 9.\r \n" ); document.write( "\n" ); document.write( "good luck!!! \n" ); document.write( " |