Question

Keith is putting money into a savings account. He starts with $650 in the savings account, and each week he adds $60.Let S represent the total amount of money in the savings account (in dollars), and let Wrepresent the number of weeks Keith has been adding money. Write anequation relating Sto W. Then use this equation to find the total amount of money in the savings account after 17 weeks.Equation: 0O-OX6?Total amount of money after 17 weeks: sl

Answer 1

Let S represent the total amount of money in the savings account (in dollars) and let W represent the number of weeks Keith has been adding money.

Since he started with $650 and he is adding a constant amount of $60 every week, it means that the total amount of money that would be in the account after W weeks would be expressed by the equation,

S = 60W + 650

To find the total amount in the account after 17 weeks, we would substitute W = 17 into the above equation. It becomes

`\begin{gathered} S\text{ = (60}*17)\text{ + 650} \\ S\text{ = 1020 + 650} \\ S\text{ = 1670} \end{gathered}`

The total amount of money after 17 weeks is $1670