document.write( "Question 246880: find all sets of three consecutive positive even integers whose sum is less than 40 \n" ); document.write( "
Algebra.Com's Answer #180194 by Edwin McCravy(20055)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Tutor John thought you said \"consecutive positive integers, \n" ); document.write( "not \"consecutive positive EVEN integers.\" \n" ); document.write( " \n" ); document.write( "find all sets of three consecutive positive \n" ); document.write( "even integers whose sum is less than 40 \n" ); document.write( " \r\n" ); document.write( "Let n be the smallest. Then the next consecutive positive even \r\n" ); document.write( "integer is n+2 and the largest is n+4\r\n" ); document.write( "\r\n" ); document.write( "n + (n+2) + (n+4) < 40\r\n" ); document.write( "n + n + 2 + n + 4 < 40\r\n" ); document.write( " 3n + 6 < 40\r\n" ); document.write( " 3n < 34\r\n" ); document.write( " n < 11 1/3\r\n" ); document.write( "\r\n" ); document.write( "The largest even integer less than 11 1/3 is 10, so the smallest\r\n" ); document.write( "can be any even integer between 2 and 10. These are: \r\n" ); document.write( "\r\n" ); document.write( "1. 2, 4, and 6 are 3 consecutive positive even integers whose sum is 12.\r\n" ); document.write( "2. 4, 6, and 8 are 3 consecutive positive even integers whose sum is 18.\r\n" ); document.write( "3. 6, 8, and 10 are 3 consecutive positive even integers whose sum is 24.\r\n" ); document.write( "4. 8, 10, and 12 are 3 consecutive positive even integers whose sum is 30.\r\n" ); document.write( "5. 10, 12, and 14 are 3 consecutive positive even integers whose sum is 36.\r\n" ); document.write( "\r\n" ); document.write( "There are 5 of them.\r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |