Question

Question #bc25e

Answer 1

See a solution process below:

Explanation:

The sequence `A(1) = 60`

Formula 1)

Substitute `1` for `n` gives:

`A(1) = 60 - 3(1 + 1) = 60 - (3 xx 2) = 60 - 6 = 54`

Formula is not the formula for the sequence in the problem.

Formula 2)

Substitute `1` for `n` gives:

`A(1) = 60 + (3 xx 1) = 60 + 3 = 63`

Formula is not the formula for the sequence in the problem.

Formula 3)

Substitute `1` for `n` gives:

`A(1) = 60 - 3(1 - 1) = 60 - (3 xx 0) = 60 - 0 = 60`

Formula is may be the formula for the sequence in the problem.

Formula 4)

`A(1) = 60 - (3 xx 1) = 60 - 3 = 57`

The Solution Is Formula 3: `A(n) = 60 - 3(n - 1)`