document.write( "Question 1152558: One third the sum of two numbers is 50 and one fifth of their difference is 2. Find the numbers \n" ); document.write( "
Algebra.Com's Answer #774581 by Cromlix(4381) You can put this solution on YOUR website! Hi, \n" ); document.write( "(x + y)/3 = 50 \n" ); document.write( "(x - y)/5 = 2 \n" ); document.write( "Cross multiply\r \n" ); document.write( "\n" ); document.write( "x + y = 150 \n" ); document.write( "x - y = 10\r \n" ); document.write( "\n" ); document.write( "Add both together\r \n" ); document.write( "\n" ); document.write( "2x = 160 \n" ); document.write( "x = 80 \n" ); document.write( "Substitute into x + y = 150 \n" ); document.write( "80 + y = 150 \n" ); document.write( "y = 150 - 80 \n" ); document.write( "y = 70 \n" ); document.write( "x = 80 and y = 70 \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |