document.write( "Question 1047550: The balcony of a theater has 12 rows of seats. The last row contains 8 seats, and each of the other rows contains one more seat than the rows behind it. How many seats are there in the balcony? \n" ); document.write( "
Algebra.Com's Answer #663116 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Arithmetic progression with the first term 8 and the common difference 1.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "On arithmetic progressions, see the lessons \r \n" ); document.write( "\n" ); document.write( " - Arithmetic progressions\r \n" ); document.write( "\n" ); document.write( " - The proofs of the formulas for arithmetic progressions \r \n" ); document.write( "\n" ); document.write( " - Problems on arithmetic progressions \r \n" ); document.write( "\n" ); document.write( " - Word problems on arithmetic progressions\r \n" ); document.write( "\n" ); document.write( " - Chocolate bars and arithmetic progressions\r \n" ); document.write( "\n" ); document.write( " - Solved problems on arithmetic progressions \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "OVERVIEW of my lessons on arithmetic progressions with short annotations is in the lesson OVERVIEW of lessons on arithmetic progressions.\r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |