SOLUTION: A plant grows 1.67 cm in its first week. Each week it grows by 2% more than it did the week before. By how much does it grow in twenty weeks, including the first week?

Algebra ->  Sequences-and-series -> SOLUTION: A plant grows 1.67 cm in its first week. Each week it grows by 2% more than it did the week before. By how much does it grow in twenty weeks, including the first week?       Log On

The sum of the first 20 terms of the geometric progression with the terms


     =  cm,  n = 1, 2, 3, . . . , 20.


Use the formula for the sum of a geometric progression.