document.write( "Question 574501: 1+3+5+7+ . . . +99+101 = (?) Please show me the steps. \n" ); document.write( "
Algebra.Com's Answer #369104 by reviewermath(1029)![]() ![]() You can put this solution on YOUR website! 1 = 1 = \n" ); document.write( "1+3 = 4 = \n" ); document.write( "1+3+5 = 9 = \n" ); document.write( "1+3+5+7 = 16 = \n" ); document.write( "... \n" ); document.write( "The sum of the first n odd numbers is \n" ); document.write( "The nth odd number is 2n-1. \n" ); document.write( "2n-1 = 101 \n" ); document.write( "n = 51 \n" ); document.write( "There are 51 odd numbers from 1 to 101, inclusive. \n" ); document.write( "The sum of the first 51 odd numbers is \n" ); document.write( "\n" ); document.write( "Answer: 2601 \n" ); document.write( " |