document.write( "Question 712591: pls answer it..thanks
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document.write( "The sum of 4 consecutive even number is 212. Find the 4th number \n" );
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Algebra.Com's Answer #438055 by DrBeeee(684) ![]() You can put this solution on YOUR website! You need to know how to represent consecutive even or odd numbers, then it's easy to solve. \n" ); document.write( "Let n = the first even number \n" ); document.write( "Then the next consecutive even number is n+2, and the next is n+4 and the fourth is n+6. \n" ); document.write( "Now let's add them up and set the sum equal to 212 and get \n" ); document.write( "(1) n + (n+2) + (n+4) + (n+6) = 212 or \n" ); document.write( "(2) 4n +2 +4 + 6 = 212 or \n" ); document.write( "(3) 4n = 212 - 12 or \n" ); document.write( "(4) 4n = 200 or \n" ); document.write( "(5) n = 50 \n" ); document.write( "Let's check using (1) \n" ); document.write( "Is (50 + 52 + 54 + 56 = 212)? \n" ); document.write( "Is (212 = 212)? Yes \n" ); document.write( "Answer: The four consecutive even numbers are 50, 52, 54, and 56. The 4th number is 56. \n" ); document.write( "PS Do the same if they are consecutive odd numbers. The problem statement will automatically get the odd sequence as it did above for the even sequence. \n" ); document.write( " \n" ); document.write( " |