Sarah has $250 in her account. She withdraws $25 per week. How many weeks can she withdraw money from her account and still have money left?
Let w be the number of weeks. We have the following equation for the Balance after w weeks:
B(w) = 250 - 25w we subtract for withdrawals
The ability to withdrawal money means have a positive or zero balance after withdrawal. So we set up the inequality below:
250 - 25w >= 0
To solve this inequality for w, we type it in our search engine and we get:
w <= 10
So Sarah can withdrawal for up to 10 weeks
Let w be the number of weeks. We have the following equation for the Balance after w weeks:
B(w) = 250 - 25w we subtract for withdrawals
The ability to withdrawal money means have a positive or zero balance after withdrawal. So we set up the inequality below:
250 - 25w >= 0
To solve this inequality for w, we type it in our search engine and we get:
w <= 10
So Sarah can withdrawal for up to 10 weeks