document.write( "Question 1204114: The first and the last term of an arithmetic progression are -0.5 and 140.5 respectively. If the number of terms in the sequence is 48, find it's common difference \n" ); document.write( "
Algebra.Com's Answer #840157 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Informally.... \n" ); document.write( "The difference between the first and last terms is 140.5-(-.5) = 141. \n" ); document.write( "There are 48 terms in the sequence, which means the last term is 47 terms after the first. \n" ); document.write( "The common difference in the sequence is then 141/47 = 3. \n" ); document.write( "ANSWER: 3 \n" ); document.write( " \n" ); document.write( " |