Solve the following real world problem destiny opens a checking account with $100.00 and then deposits $27.00 each week how many weeks will it take for her account to reach $343.00

1 answer

To find out how many weeks it will take for Destiny's account to reach $343.00, we can set up an equation based on her initial deposit and weekly deposits.

  1. Destiny starts with an initial amount of $100.00.
  2. She adds $27.00 each week.
  3. We want to find the number of weeks \( w \) it takes to reach $343.00.

The equation that represents the total amount in her account after \( w \) weeks is:

\[ \text{Total amount} = \text{Initial amount} + (\text{weekly deposit} \times \text{number of weeks}) \]

Substituting in the values:

\[ 343 = 100 + 27w \]

Now, we can solve for \( w \):

  1. Subtract $100 from both sides:

\[ 343 - 100 = 27w \]

\[ 243 = 27w \]

  1. Divide both sides by 27:

\[ w = \frac{243}{27} \]

\[ w = 9 \]

It will take Destiny 9 weeks to reach $343.00 in her checking account.