SOLUTION: Thank you for your help and please help cause I am study for midterm now thank you. Here is question: a formation of a marching band has 14 marchers in the front row, 16 in the sec
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Question 363769: Thank you for your help and please help cause I am study for midterm now thank you. Here is question: a formation of a marching band has 14 marchers in the front row, 16 in the second row, 18 in the third row, and so on for 25 rows. How many marchers are in the last row? How many marchers are there together Answer by robertb(5830) (Show Source):
You can put this solution on YOUR website! The sequence is an arithmetic sequence with a1 = 14, d = 2, and n = 25. Then a25 = 14 + (25-1)*2 = 14+24*2 = 14+48 = 62. There are 62 marchers in the last row. There are marchers all in all.
