Question

Fiona doubled the original amount in her savings account, s. Which expression represents her new balance and what is that new balance if s=160?
2s; when s=160 the new balance in Fiona’s savings account is $80.
s/2; when s=160 the new balance in Fiona’s savings account is $320.
2s; when s=160 the new balance in Fiona’s savings account is $320.
s/2; when s=160 the new balance in Fiona’s savings account is $80.

Answer 1

2s; when s=160 the new balance in Fiona’s savings account is $320, option 3.

Answer 2

Answer:

3. 2s; when s=160 the new balance in Fiona’s savings account is $320.

Step-by-step explanation:

We are given,

The original amount in her savings account = s (in dollars).

Now, Fiona doubled the original amount.

This gives us,

New balance in the account = 2 × s = 2s (in dollars).

Thus, the new balance is 2s (in dollars).

If s = $160, then new balance = 2 × 160 = $320.

Hence, the new balance will be $320 if s=$160.