Question

John starts out at $10 in his savings account and his grandparents add $10 a week . Write a recursive formula to represent how much money john has any time after two weeks

Answer 1

10 + 10w = a
10 + 10w = 20

Answer 2

`10+10w`

Explanation:

Given that John starts out at $10 in his savings account and his grandparents add $10 a week

Initial deposit by John = 10$

Weekly addition by grand parents of John =10$

Thus initially the account would have 10, I week, 20, second week 30 and so on.

10,20,30,........will be the growth

If no of weeks elapsed is w, then balance would be

`10+10w`