Answer:
12 weeks
Step-by-step explanation:
We are told that Angelo deposits the same amount of money each week and in 8 weeks he deposits a total of $ 280; therefore, the amount he deposits in one week is
![\$280/8=\$35](https://img.qammunity.org/2023/formulas/mathematics/college/uvhmimbcyv7u3z9o26ocdymkpi0pzow18t.png)
This means, Angelo deposits a fixed $35 per week.
How many weeks until Angelo collects a total of $420 in his bank account?
The answer is found by dividing $420 by the amount he deposits each week ($35)
![\$420/\frac{\$35}{\text{week}}=12weeks](https://img.qammunity.org/2023/formulas/mathematics/college/fax0ctzs6sidv45567eh5zidsmtsr4y0t8.png)
which is our answer!