Question

Shannon opens a savings account with $50. Each week after that she deposits $8 into her account. How many weeks does it take her to save $450?

Answer 1

`w=50`
It will take Shannon 50 weeks to save $450.

Explanation:

The balance of Shannon's savings account can be represented by the equation:
`b=$8w+$50`, where `b` is the balance after `w` weeks.
Since we are determining how many weeks it takes her to save `$450`, we can set balance `b` to `$450`

`$450=$8w+$50` Isolate `w` and its coefficient
`$400=$8w` Isolate `w`
`w=50`