document.write( "Question 5391: What is the sequence here? 4,9,19,39,79. Find the next term. \n" ); document.write( "
Algebra.Com's Answer #2741 by Abbey(339)![]() ![]() ![]() You can put this solution on YOUR website! The difference between 4 and 9 is 5 \n" ); document.write( "The difference between 9 and 19 is 10 \n" ); document.write( "The difference between 19 and 39 is 20 \n" ); document.write( "The difference between 39 and 79 is 40\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So it looks as if the difference is being doubled each time, so the next answer will have a difference of 2*40, or 80 \n" ); document.write( "79+80=159 \n" ); document.write( " |