One of Jimmy’s friends told him that he would save more if, instead of multiplying the amount by 3 each week, he added enough at the end of 5 weeks to multiply the existing amount by 3. Use summation notation to write this as a sum and find the total amount he would save using this plan.

what was the initial amount?

Step-by-step explanation:

i might need more information.

Step-by-step explanation: in each of the first five weeks of his job he wants to raise $2 to the number of weeks he has been working multiply it by three and add that amount to the savings account

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

need more information

step-by-step explanation: