document.write( "Question 1028654: The sum of two numbers is 400. If the first number were decreased by 20% and the second number were decreased by 15%, then the sum would be 68 less. Find the numbers after decreasing. \n" ); document.write( "
Algebra.Com's Answer #643778 by robertb(5830)![]() ![]() You can put this solution on YOUR website! Let x and 400 - x be the two numbers.\r \n" ); document.write( "\n" ); document.write( "==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.\r \n" ); document.write( "\n" ); document.write( "<==> 0.80x + 0.85(400 - x) = 400 - 68\r \n" ); document.write( "\n" ); document.write( "==> 340 - 0.05x = 332\r \n" ); document.write( "\n" ); document.write( "<==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |