Respuesta :

Answer:

The Formula is:    Aτ = Aτ-₁ / 3

Step-by-step explanation:

Initial Amount (in Week 1) = 2

Next Amount (in Week 2) = 2/3

Amount in Week 3 = 2/3 ÷ 3  = 2/3 × 1/3  = 2/9

Amount in Week 4 = 2/9 ÷ 3  = 2/9 × 1/3  = 2/27

You're to find a formula that gives the amount after a number of weeks; where

Amount = A and     Weeks or Time in Weeks = t

A formula implies a general means of solving for the amount in any given week.

That formula is derived thus:

A₁ = 2     A₂ = 2/3     A₃ = A₂/3     A₄ = A₃/3

Summarizing,

Let t = the subscripts of the A's, hence t = time in weeks

The Formula is:    Aτ = Aτ-₁ / 3

where τ is a Greek letter used to represent English letter t

The subscript t-1 represents the period or week before the desired or current period

Asubscriptt-1 represents the amount in that previous week. So to get the amount in the current or desired week, simply divide this figure by 3.

KUDOS.